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Two-shift fluid machine
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Patent number 6,142,759
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Issue date Nov 7, 2000
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Tochigi Fuji Sangyo Kabushiki
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Masao Tateno
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Method of processing screw rotor
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Patent number 5,806,182
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Issue date Sep 15, 1998
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Tochigi Fuji Sangyo Kabushiki Kaisha
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Masao Tateno
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Fluid machine having balance correction
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Patent number 5,797,735
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Issue date Aug 25, 1998
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Tochigi Fuji Sangyo Kabushiki Kaisha
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Susumu Ishikawa
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Variable speed pulley and gear mechanism
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Patent number 5,242,330
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Issue date Sep 7, 1993
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Tochigifujisangyo Kabushiki Kaisha
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Masao Tateno
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...