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Protected swivel
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Patent number 5,772,350
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Issue date Jun 30, 1998
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Robert C. Ferguson
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E21 - EARTH DRILLING MINING
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Recumbent total body exerciser
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Patent number 5,356,356
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Issue date Oct 18, 1994
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Life Plus Incorporated
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Mark D. Hildebrandt
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A63 - SPORTS GAMES AMUSEMENTS
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Self-closing door hinge
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Patent number 5,272,789
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Issue date Dec 28, 1993
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Quest Engineering, Ltd.
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Terry L. Mitchell
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Drawer interlock
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Patent number 4,889,396
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Issue date Dec 26, 1989
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G. A. Richards Company
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Terry L. Mitchell
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES