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G07F5/02—Coin-actuated mechanisms; Interlocks actuated mechanically by coins, e.g. by a single coin
G07F5/04—Coin-actuated mechanisms; Interlocks actuated mechanically by coins, e.g. by a single coin wherein two or more coins of the same denomination are required for each transaction
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FR529541D1919-01-091921-01-08
Enhancements to coin operated vending machines
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