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Coin hopper relay
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Patent number 5,064,116
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Issue date Nov 12, 1991
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Quadrum Telecommunications, Inc.
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Gerald B. McGough
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G07 - CHECKING-DEVICES
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Lock protector assembly
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Patent number 4,852,373
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Issue date Aug 1, 1989
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Palco Telecom Inc.
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Gerald B. McGough
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Coin relay selector card
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Patent number 4,386,690
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Issue date Jun 7, 1983
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GTE Automatic Electric Labs Inc.
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Gerald B. McGough
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G07 - CHECKING-DEVICES
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