Most Recently Added Slot Machine Patents
| Year | Pat. № | Patentee | Description | Added |
|---|---|---|---|---|
| 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 |
| 1935 | GB428917 | Percy Stephen Harper | Improvements in coin-freed mechanism for automatic delivery | 03/11/18 |
| 1935 | GB429160 | Percy Stephen Harper | Improvements in coin-freed mechanism for automatic delivery | 03/11/18 |
| 1935 | GB425024 | Percy Stephen Harper | Coin selecting and testing mechanism | 03/11/18 |
| 1930 | GB336818 | Percy Stephen Harper | Improvements in coin-freed mechanism for vending | 03/11/18 |
| 1932 | GB378734 | Percy Stephen Harper | Improvements in magnetic coin detector mechanism | 03/11/18 |
| 1937 | GB467499 | Percy Stephen Harper | Improvements to coin freed vending machines | 03/11/18 |
| 1937 | GB465621 | Percy Stephen Harper | Improvements to coin freed vending machines | 03/11/18 |
| 1939 | GB510428 | Percy Stephen Harper | Coin acceptors | 03/11/18 |
| 1929 | GB321842 | Percy Stephen Harper | Coin-selecting mechanism for coinfreed vending machines | 03/11/18 |
| 1906 | FR359707 | Edward Charles Bignell & George Haydon | Coin-op bagatelle | 19/03/18 |
| 1904 | FR335226 | George Haydon & Edward Charles Bignell | Gambling with dial (Abel Nau - Le Phenix) - French patent | 19/03/18 |
| 1902 | GB190120904 | George Haydon & Agnes Mouflet | Impovement in tills | 19/03/18 |
| 1901 | GB190022494 | George Haydon | Tivoli with balls | 19/03/18 |
| 1900 | GB190010646 | Thomas Owen Baylis & George Haydon | Improvements in Coin Freed Goods Delivery Apparatus | 19/03/18 |
| 1894 | GB189319620 | J R Hughes & George Haydon | Coin released mechanism | 19/03/18 |
| 1904 | FR338719 | Haydon & Urry | Blowball - French patent | 19/03/18 |
| 1901 | GB190018429 | Automatic Machines Ltd. Haydon & Urry | Tivoli type (Criterion) | 19/03/18 |
| 1901 | GB190001467 | Haydon & Urry | Cinematograph (not coin-op) | 19/03/18 |
| 1900 | GB189921551 | Haydon & Urry | Tivoli | 19/03/18 |
| 1899 | GB189811792 | Haydon & Urry | Coin freed winding mechanism for polyphons etc. | 19/03/18 |
| 1896 | CH11088 | Haydon & Urry | Tivoli dispenser mechanism - Swiss patent | 19/03/18 |
| 1895 | CH10107 | Haydon & Urry | Skill game (Over the Barrels) - Swiss patent | 19/03/18 |
| 1916 | GB102746 | John Jofeh | Tug of War, two player wall machine | 12/01/18 |
| 1902 | GB190113701 | John Jofeh | Bagatelle type | 12/01/18 |
| 1902 | GB190201196 | John Jofeh | Hill Climber spirometer | 12/01/18 |
| 1901 | GB190023778 | Gustav Ringelhan | Circular race with figures (not coin-op) | 12/01/18 |
| 1901 | GB190102106 | Simon Daly | Cycle racing game | 12/01/18 |
| 1902 | GB190211258 | John Henry Peters | Racing figure mechanism | 12/01/18 |
| 1902 | GB190116969 | Dward Gustave Lindheimer | Coin operated coat & hat rack | 12/01/18 |
| 1903 | US739865 | Robert H Hartley | Recording force of blow | 12/01/18 |
| 1901 | GB190100258 | Alexander Forbes | Game using coin as missile | 12/01/18 |
| 1901 | US685592 | Alexander Forbes | Game using coin as missile | 12/01/18 |
| 1901 | GB190020811 | Abraham Levy | Haydon & Urry Tivoli | 12/01/18 |
| 1902 | GB190112486 | Alexander Forbes | Coin return 'broken bridge' skill game | 12/01/18 |
| 1901 | GB190114816 | Frank Hepton | Spinning disc fortune teller | 12/01/18 |
| 1902 | GB190116965 | Arthir Samuel Williams | Beverage vending spirometer | 12/01/18 |
| 1934 | US1971062 | Walter William Burton | Revolving Jackpots bandit | 10/01/18 |
| 1930 | GB347462 | Thomas Haworth | Target skill game | 15/12/17 |
| 1931 | GB353048 | Thomas Haworth | Fairground target skill game | 15/12/17 |
| 1932 | GB366761 | Thomas Haworth | Fairground clown ball catching game | 15/12/17 |
| 1922 | GB179418 | Thomas Haworth | Prize vending game with targets on vehicles | 15/12/17 |
| 1935 | GB436974 | Thomas Haworth | Fairground shooting game | 15/12/17 |
| 1894 | GB189318741 | Robert William Page | Coin-freed measuring & weighing | 15/11/17 |
| 1905 | GB190421756 | Robert William Page | Coin freed apparatus for displaying pictures, delivering post and other cards and articles | 15/11/17 |
| 1934 | 16930/34 | George Raymond Bowler, Arthur Edwin Bowler, Leslie Allan Bowler | Propel coin over targets | 05/08/17 |
| 1933 | 15193/33 | George Raymond Bowler, Arthur Edwin Bowler, Leslie Allan Bowler | Coin rolling golf | 05/08/17 |
| 1966 | US42814465A | Mar-Matic Sales Ltd. | Coin operating mechanism | 03/08/17 |
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