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Helical-blade fluid machine
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Patent number 6,338,617
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Issue date Jan 15, 2002
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Kabushiki Kaisha Toshiba
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Makoto Hayano
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Helical-blade fluid machine
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Patent number 6,162,035
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Issue date Dec 19, 2000
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Kabushiki Kaisha Toshiba
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Makoto Hayano
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Rolling-piston expander apparatus
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Patent number 5,775,883
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Issue date Jul 7, 1998
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Kabushiki Kaisha Toshiba
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Hitoshi Hattori
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Scroll type compressor
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Patent number 5,240,389
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Issue date Aug 31, 1993
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Kabushiki Kaisha Toshiba
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Satoru Oikawa
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...