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Submergible motor pump
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Patent number 5,074,764
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Issue date Dec 24, 1991
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Ebara Corporation
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Makoto Kobayashi
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Portable motor pump
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Patent number 4,934,914
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Issue date Jun 19, 1990
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Ebara Corporation
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Makoto Kobayashi
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Grinder pump
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Patent number 4,911,368
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Issue date Mar 27, 1990
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Ebara Corporation
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Shinji Nishimori
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Grinder pump
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Patent number 4,697,746
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Issue date Oct 6, 1987
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Ebara Corporation
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Shinji Nishimori
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...