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Pump assembly and method
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Issue date Apr 11, 2006
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R. H. Sheppard Co., Inc.
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Robert H. Breeden
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Slot forming apparatus
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Patent number 4,978,263
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Issue date Dec 18, 1990
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Peter H. Sheppard
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Ball screw mechanism
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Patent number 4,750,378
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Issue date Jun 14, 1988
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Peter H. Sheppard
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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