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Compressor with an isolated vane slot
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Patent number 4,960,372
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Issue date Oct 2, 1990
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General Electric Company
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Gary O. Scheldorf
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Sheet slicing mechanism
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Patent number 4,934,236
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Issue date Jun 19, 1990
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AM International Corporation
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James F. Gordon
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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Graphic recording system
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Patent number 4,578,683
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Issue date Mar 25, 1986
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Nicolet Instrument Corporation
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James F. Gordon
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G01 - MEASURING TESTING
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Convertible graphic recorder
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Patent number 4,158,846
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Issue date Jun 19, 1979
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Zeta Research, Inc.
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James F. Gordon
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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