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Safety latch
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Patent number 4,372,591
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Issue date Feb 8, 1983
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Standard-Keil Hardware Mfg. Co., a Division of Buildex Inc.
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Sanford L. Cook
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Shielded vent port
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Patent number 4,257,445
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Issue date Mar 24, 1981
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Buildex Incorporated
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Sanford L. Cook
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Safety latch
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Patent number 4,203,622
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Issue date May 20, 1980
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Standard Keil Hardware Manufacturing Company, a Division of Buildex Incorporated
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Sanford L. Cook
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES