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Pressure balanced cyclone separator
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Patent number 5,800,579
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Issue date Sep 1, 1998
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Precision Cutters, Inc.
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John G. S. Billingsley
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Cyclone separator
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Patent number 5,236,479
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Issue date Aug 17, 1993
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Precision Cutters, Inc.
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John G. S. Billingsley
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Materials handling fan impeller
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Patent number 4,958,987
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Issue date Sep 25, 1990
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Precision Cutters, Inc.
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John G. S. Billingsley
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...