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Slide type exhaust brake
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Patent number 4,903,802
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Issue date Feb 27, 1990
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Usui Kokusai Sangyo Kabushiki Kaisha
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Kazunori Takigawa
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Blades for propeller fan
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Patent number 4,869,644
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Issue date Sep 26, 1989
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Usui Kokusai Sangyo Kabushiki Kaisha
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Kazunori Takigawa
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Blades for low speed propeller fan
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Patent number 4,859,150
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Issue date Aug 22, 1989
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Usui Kokusai Sangyo Kabushiki Kaisha
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Kazunori Takigawa
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Blades for high speed propeller fan
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Patent number 4,846,629
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Issue date Jul 11, 1989
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Usui Kokusai Sangyo Kabushiki Kaisha
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Kazunori Takigawa
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Coupling
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Patent number 4,776,616
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Issue date Oct 11, 1988
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Usui Kokusai Sangyo Kabushiki Kaisha
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Kazumasa Umehara
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Hose coupling assembly
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Patent number 4,775,170
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Issue date Oct 4, 1988
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Usui Kokusai Sangyo Kabushiki Kaisha
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Masayoshi Usui
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Slide-type exhaust braking system
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Patent number 4,751,987
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Issue date Jun 21, 1988
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Usui Kokusai Sangyo Kabushiki Kaisha
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Kazunori Takigawa
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Sliding exhaust gas brake
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Patent number 4,685,544
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Issue date Aug 11, 1987
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Usui Kokusai Sangyo Kabushiki Kaisha
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Kazunori Takigawa
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS