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Nut and bolt locking emchanism
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Patent number 4,940,373
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Issue date Jul 10, 1990
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Shim-A-Line, Inc.
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Gerald A. Specktor
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Locking apparatus
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Patent number 4,263,802
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Issue date Apr 28, 1981
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Gerald A. Specktor
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Vehicle anchoring apparatus
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Patent number 4,236,400
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Issue date Dec 2, 1980
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Gerald A. Specktor
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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