ARCHIVE

PAT. No.  GB326911  Coin-freed vending   Percy Stephen Harper, 1930  

PAT. No.  GB327207  Coin-freed vending   Percy Stephen Harper, 1930  

PAT. No.  GB326590  Coin-freed vending   Percy Stephen Harper, 1930  

PAT. No.  GB509889  Coin gauging and selecting mechanism   Percy Stephen Harper, 1939  

PAT. No.  GB488841  Coin-slot blocking devices for vending machines   Percy Stephen Harper, 1938  

PAT. No.  GB326621  Drawers for automatic vending   Percy Stephen Harper, 1930  

PAT. No.  GB326622  Drawer controlling for coin-freed machines   Percy Stephen Harper, 1930  

PAT. No.  GB556021  Coin-freed mechanism   Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd, 1943  

PAT. No.  GB489387  Goods ejecting mechanism for coin freed vending   Percy Stephen Harper, 1938  

PAT. No.  GB385782  Magnetic coin detector   Percy Stephen Harper, 1933  

PAT. No.  GB394283  Multiple drawer coin-freed vending   Percy Stephen Harper & Thomas Frederick Caldwell, 1933  

PAT. No.  GB357067  Coin-freed apparatus   Percy Stephen Harper, 1931  

PAT. No.  GB550228  Coin-controlled vending   Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd, 1942  

PAT. No.  GB398120  Delivering postage stamps, tickets and the like   Percy Stephen Harper & Thomas Frederick Caldwell, 1933  

PAT. No.  GB395311  Coin-freed vending of postage stamps, tickets and the like   Percy Stephen Harper, 1933  

PAT. No.  GB560028  Coin-controlled vending   Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd, 1944  

PAT. No.  GB325418  Drawer release mechanism for coin-freed vending   Percy Stephen Harper, 1930  

PAT. No.  GB385811  Magnetic coin-separating devices   Percy Stephen Harper, 1933  

PAT. No.  GB394106  Apparatus for testing coins and the like by weight   Percy Stephen Harper, 1933  

PAT. No.  GB541223  Coin-freed mechanism   Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd, 1941  

PAT. No.  GB342625  Coin-selecting mechanism for vending   Percy Stephen Harper, 1931  

PAT. No.  GB564479  Coin-operated electric switch   Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd, 1944  

PAT. No.  GB529421  Improvements in coin-freed vending   Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd, 1940  

PAT. No.  GB564480  Coin-controlled machines   Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd, 1944  

PAT. No.  GB561878  Electro-magnetic delay-action switch   Percy Stephen Harper & Harper Automatic Machine Manufacturing Co. Ltd, 1944  

PAT. No.  GB354474  Drawer-release mechanism for coin-freed vending   Percy Stephen Harper, 1931  

PAT. No.  GB390978  Devices for testing coins, discs and tokens by weight   Percy Stephen Harper, 1933  

PAT. No.  GB390387  Improvements in coin-freed vending   Percy Stephen Harper, 1933  

PAT. No.  GB390391  Improvements in coin-freed vending   Percy Stephen Harper, 1933  

PAT. No.  GB409552  Multiple door or drawer coin-freed vending   Percy Stephen Harper & Thomas Frederick Caldwell, 1934  

PAT. No.  GB373033  Improvements in coin-freed mechanism   Percy Stephen Harper, 1932  

PAT. No.  GB355049  Coin-freed mechanism for packet carriers of vending machines   Percy Stephen Harper, 1931  

PAT. No.  GB337918  Coin-freed mechanism for automatic delivery   Percy Stephen Harper, 1930  

PAT. No.  GB465255  Drawer locking and release for coin freed vending   Percy Stephen Harper, 1937  

PAT. No.  GB390766  Magnetic coin selector   Percy Stephen Harper, 1933  

PAT. No.  GB482762  Coin gauging and selecting mechanism   Percy Stephen Harper, 1938  

PAT. No.  GB487938  Improvements in coin testing devices   Percy Stephen Harper, 1938  

PAT. No.  GB428917  Improvements in coin-freed mechanism for automatic delivery   Percy Stephen Harper, 1935  

PAT. No.  GB429160  Improvements in coin-freed mechanism for automatic delivery   Percy Stephen Harper, 1935  

PAT. No.  GB425024  Coin selecting and testing mechanism   Percy Stephen Harper, 1935