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Rotor assembly of roots pump
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Patent number 4,747,763
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Issue date May 31, 1988
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Toyota Jidosha Kabushiki Kaisha
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Takuo Sibata
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Roots-type fluid machine
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Patent number 4,717,322
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Issue date Jan 5, 1988
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Toyota Jidosha Kabushiki Kaisha
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Naofumi Masuda
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Solenoid valve for hydraulic control
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Patent number 4,647,008
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Issue date Mar 3, 1987
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Toyota Jidosha Kabushiki Kaisha
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Hisao Shirai
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Lubrication device in transmissions
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Patent number 4,644,815
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Issue date Feb 24, 1987
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Toyota Jidosha Kabushiki Kaisha
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Ken Kawano
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...