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Lock
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Patent number 3,974,669
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Issue date Aug 17, 1976
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American Locker Company, Inc.
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Wells F. Stackhouse
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Combination magnetic key
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Patent number 3,955,388
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Issue date May 11, 1976
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American Locker Company
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Wells F. Stackhouse
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Magnetic lock
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Patent number 3,948,068
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Issue date Apr 6, 1976
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American Locker Company, Inc.
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Wells F. Stackhouse
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Coin operated lock
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Patent number 3,938,640
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Issue date Feb 17, 1976
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American Locker Company, Inc.
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Wells F. Stackhouse
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G07 - CHECKING-DEVICES