Most Recently Added Slot Machine Patents
| Year | Pat. № | Patentee | Description | Added |
|---|---|---|---|---|
| 1894 | GB189420360 | John Nevil Maskelyne | Improvements in Check or Coin-freed (toilet) Locks or Bolts for Doors | 09/07/21 |
| 1898 | GB189721540 | John Nevil Maskelyne | Improvements relating to (toilet) Door Bolts and Indicators | 09/07/21 |
| 1902 | GB190120450 | John Nevil Maskelyne | Improvements relating to Coin-freed Door Locks and Indicators | 09/07/21 |
| 1907 | GB190605446 | John Nevil Maskelyne | Improvements in registering door locks | 09/07/21 |
| 1912 | GB191119367 | John Nevil Maskelyne | Improvements in coin-freed locks | 09/07/21 |
| 1928 | GB288374 | Charles Edmund Fey | Skill amusement boxing game | 23/05/21 |
| 1918 | US1274960 | Charles August Fey & John L Vaughn | Automatic talking machine | 23/05/21 |
| 1914 | GB191325568 | Charles August Fey | Improvements in coin-op scales | 23/05/21 |
| 1913 | US1077517 | Charles August Fey | Coin-op scales | 23/05/21 |
| 1917 | FR481713 | Pessers, Moody, Wraith & Gurr | Bijou Pickwick | 22/02/21 |
| 1916 | GB101179 | Pessers, Moody, Wraith & Gurr | Coin-freed, token paying, amusement machine mechanism | 22/02/21 |
| 1916 | GB100980 | Pessers, Moody, Wraith & Gurr | Check delivery mechanism for coin games | 22/02/21 |
| 1920 | GB152171 | Richard Henry John Pessers | Multi-coin vending apparatus | 22/02/21 |
| 1920 | GB150535 | Albert Benjamin Brinkworth & Henry John Gerrard Pessers | Rocking or rotating prize vending coin game | 22/02/21 |
| 1923 | GB192467 | Henry John Gerard & Richard Henry John Pessers | Prize vending coin game | 22/02/21 |
| 1899 | GB189805669 | Henry John Gerard Pessers | Prize vending coin game | 22/02/21 |
| 1898 | GB189824528 | Henry John Gerard Pessers | Coin actuated fortune dial | 21/02/21 |
| 1900 | GB189918232 | John Gerrard Cornelius Maria Pessers | Ball game with plunger | 21/02/21 |
| 1901 | GB190017574 | John Gerrard Cornelius Maria Pessers | Token pay shooting game with moving soldier figure | 21/02/21 |
| 1925 | GB190206830 | JG Pessers, H Klein | Tivoli type | 21/02/21 |
| 1909 | GB190907922 | Jofeh, Pessers, Moody | Coin acceptor testing | 21/02/21 |
| 1910 | GB190924946 | Pessers, Moody, Wraith & Gurr | Improvements in weighing apparatus | 21/02/21 |
| 1914 | GB191408176 | Henry John Gerard Pessers | Tivoli type | 21/02/21 |
| 1915 | GB191510036 | Pessers, Moody, Wraith & Gurr | Bijou Pickwick | 21/02/21 |
| 1908 | US898765 | Charles E Morris | Cartridge vending machine | 18/06/20 |
| 1808 | US885358 | Thomas D Morrow & Charles E Morris | Shooting gallery | 18/06/20 |
| 1901 | GB190015882 | Arthur Samuel Williams | Beverage vending spirometer | 10/05/20 |
| 1900 | GB190015582 | Edward Geisler Herbert | Prize vending shooting game | 10/05/20 |
| 1900 | GB189921520 | Charles Hermann Muller (New Polyphon Supply) | Tivoli/Bagatelle type | 10/05/20 |
| 1900 | GB189921519 | Charles Hermann Muller (New Polyphon Supply) | Tivoli/Bagatelle type | 10/05/20 |
| 1899 | GB189900355 | Harry Geen Bucknell | Skill game with balls on roulette-like table | 10/05/20 |
| 1900 | GB189916495 | Charles Middlebrook | Coin-freed racing game | 10/05/20 |
| 1895 | GB189500268 | James Sykes | Football (soccer) game with individual end controls (not coin-op) | 20/04/20 |
| 1968 | GB1180560 | Mayfield Electronics Ltd. | Payout dice throwing machine | 12/10/19 |
| 1902 | GB190207860 | New Polyphon Supply Co. Ltd. & K Schmidt | Electric shocker | 08/10/19 |
| 1954 | US2693962 | Robert Stevens | Auto-pay dice game | 03/10/19 |
| 1935 | US2007259 | Mills Novelty Co. | Basis for Mills Dice auto-pay craps game | 02/10/19 |
| 1941 | GB538663 | Clement Garrett & Co. Ltd. & Leonard West | Improvements to coin-freed mechanism | 19/09/19 |
| 1942 | GB543028 | Clement Garrett & Co. Ltd. | Improved vending machine | 19/09/19 |
| 1940 | GB530729 | Clement Garrett & Co. Ltd. | Improvements for delivering tickets etc. | 19/09/19 |
| 1930 | GB324623 | Julian Clement Garrett | Improvements to coin-freed mechanism | 19/09/19 |
| 1901 | GB190104654 | Clement Garrett | Improvements in money tills | 19/09/19 |
| 1935 | US1998625 | Claude R Kirk, John F Meyer | Deliver device for crane (Merchantman) | 14/08/19 |
| 1927 | GB272624 | Charles John Jacobs | Pneumatic two player football | 07/04/19 |
| 1938 | US2135182 | Joze Allen, James E Johnson | Mysterious Eye payout dice | 15/03/19 |
| 1911 | FR428705 | Automatiques Bussoz | Paris Courses | 03/01/19 |
| 1914 | FR463669 | Automatiques Bussoz | Roulette Visible | 01/01/19 |
| 1935 | US2053828 | Percy Stephen Harper | Coin-freed machine (US pat) | 20/11/18 |
| 1931 | GB350002 | George Salter & Co Ltd & Edward Robert Rogers | Combined weighing & vending machine | 04/11/18 |
| 1931 | GB362989 | George Salter & Co Ltd & Edward Robert Rogers | Combined weighing & vending machine | 04/11/18 |
| 1931 | GB344888 | George Salter & Co Ltd & Thomas William Bache | Coin-freed machines and the like | 04/11/18 |
| 1931 | GB349493 | Thomas Frederick Caldwell | Coin-freed mechanism | 04/11/18 |
| 1930 | GB332585 | Thomas Frederick Caldwell | Coin-freed mechanism | 04/11/18 |
| 1934 | GB404391 | George Salter & Co Ltd & Thomas Frederick Caldwell | Coin-freed vending | 04/11/18 |
| 1933 | GB399303 | George Salter & Co Ltd & Thomas Frederick Caldwell | Coin-freed vending machines | 04/11/18 |
| 1933 | GB400785 | Thomas Frederick Caldwell | Coin-freed mechanism | 04/11/18 |
| 1933 | AT132822 | Percy Stephen Harper | Coin acceptor for vending (Austrian pat.) | 03/11/18 |
| 1932 | CA328200 | Percy Stephen Harper | Magnetic coin detector mechanism (Canadian pat.) | 03/11/18 |
| 1936 | DE630481 | Percy Stephen Harper | Apparatus for vending from stack (German pat.) | 03/11/18 |
| 1936 | DE629281 | Percy Stephen Harper | Coin tester (German pat.) | 03/11/18 |
| 1935 | DK50922 | Percy Stephen Harper | Coin tester (Danish pat.) | 03/11/18 |
| 1935 | DK50996 | Percy Stephen Harper | Coin-release delivery mechanism (Danish pat) | 03/11/18 |
| 1935 | GB431181 | Percy Stephen Harper | Delivery arrangements for coin-freed vending | 03/11/18 |
| 1930 | GB326911 | Percy Stephen Harper | Coin-freed vending | 03/11/18 |
| 1930 | GB327207 | Percy Stephen Harper | Coin-freed vending | 03/11/18 |
| 1930 | GB326590 | Percy Stephen Harper | Coin-freed vending | 03/11/18 |
| 1939 | GB509889 | Percy Stephen Harper | Coin gauging and selecting mechanism | 03/11/18 |
| 1938 | GB488841 | Percy Stephen Harper | Coin-slot blocking devices for vending machines | 03/11/18 |
| 1930 | GB326621 | Percy Stephen Harper | Drawers for automatic vending | 03/11/18 |
| 1930 | GB326622 | Percy Stephen Harper | Drawer controlling for coin-freed machines | 03/11/18 |
| 1943 | GB556021 | Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd | Coin-freed mechanism | 03/11/18 |
| 1938 | GB489387 | Percy Stephen Harper | Goods ejecting mechanism for coin freed vending | 03/11/18 |
| 1933 | GB385782 | Percy Stephen Harper | Magnetic coin detector | 03/11/18 |
| 1933 | GB394283 | Percy Stephen Harper & Thomas Frederick Caldwell | Multiple drawer coin-freed vending | 03/11/18 |
| 1931 | GB357067 | Percy Stephen Harper | Coin-freed apparatus | 03/11/18 |
| 1942 | GB550228 | Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd | Coin-controlled vending | 03/11/18 |
| 1933 | GB398120 | Percy Stephen Harper & Thomas Frederick Caldwell | Delivering postage stamps, tickets and the like | 03/11/18 |
| 1933 | GB395311 | Percy Stephen Harper | Coin-freed vending of postage stamps, tickets and the like | 03/11/18 |
| 1944 | GB560028 | Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd | Coin-controlled vending | 03/11/18 |
| 1930 | GB325418 | Percy Stephen Harper | Drawer release mechanism for coin-freed vending | 03/11/18 |
| 1933 | GB385811 | Percy Stephen Harper | Magnetic coin-separating devices | 03/11/18 |
| 1933 | GB394106 | Percy Stephen Harper | Apparatus for testing coins and the like by weight | 03/11/18 |
| 1941 | GB541223 | Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd | Coin-freed mechanism | 03/11/18 |
| 1931 | GB342625 | Percy Stephen Harper | Coin-selecting mechanism for vending | 03/11/18 |
| 1944 | GB564479 | Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd | Coin-operated electric switch | 03/11/18 |
| 1940 | GB529421 | Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd | Improvements in coin-freed vending | 03/11/18 |
| 1944 | GB564480 | Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd | Coin-controlled machines | 03/11/18 |
| 1944 | GB561878 | Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd | Electro-magnetic delay-action switch | 03/11/18 |
| 1931 | GB354474 | Percy Stephen Harper | Drawer-release mechanism for coin-freed vending | 03/11/18 |
| 1933 | GB390978 | Percy Stephen Harper | Devices for testing coins, discs and tokens by weight | 03/11/18 |
| 1933 | GB390387 | Percy Stephen Harper | Improvements in coin-freed vending | 03/11/18 |
| 1933 | GB390391 | Percy Stephen Harper | Improvements in coin-freed vending | 03/11/18 |
| 1934 | GB409552 | Percy Stephen Harper & Thomas Frederick Caldwell | Multiple door or drawer coin-freed vending | 03/11/18 |
| 1932 | GB373033 | Percy Stephen Harper | Improvements in coin-freed mechanism | 03/11/18 |
| 1931 | GB355049 | Percy Stephen Harper | Coin-freed mechanism for packet carriers of vending machines | 03/11/18 |
| 1930 | GB337918 | Percy Stephen Harper | Coin-freed mechanism for automatic delivery | 03/11/18 |
| 1937 | GB465255 | Percy Stephen Harper | Drawer locking and release for coin freed vending | 03/11/18 |
| 1933 | GB390766 | Percy Stephen Harper | Magnetic coin selector | 03/11/18 |
| 1938 | GB482762 | Percy Stephen Harper | Coin gauging and selecting mechanism | 03/11/18 |
| 1938 | GB487938 | Percy Stephen Harper | Improvements in coin testing devices | 03/11/18 |
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