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Zero backlash shiftable transmission
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Patent number 4,671,129
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Issue date Jun 9, 1987
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Rodger T. Lovrenich
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Motorized over center clamp
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Patent number 4,635,911
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Issue date Jan 13, 1987
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Rodger T. Lovrenich
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Electrical adaptor block
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Patent number 4,385,791
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Issue date May 31, 1983
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Cooper Industries, Inc.
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Rodger T. Lovrenich
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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