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Direct drive positive locking panel fastener
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Patent number 4,417,430
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Issue date Nov 29, 1983
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Standard Keil Hardware Manufacturing Co.
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Frank F. Loikitz
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Self-closing hinge
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Patent number 4,215,449
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Issue date Aug 5, 1980
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Standard Keil Hardware Manufacturing Co.
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Frank F. Loikitz
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Latch mechanism
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Patent number 4,205,867
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Issue date Jun 3, 1980
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Buildex Incorporated
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Frank F. Loikitz
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Self-closing spring hinges
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Patent number 4,030,161
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Issue date Jun 21, 1977
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Buildex Incorporated
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Frank F. Loikitz
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES