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Coupling assembly
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Patent number 7,086,668
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Issue date Aug 8, 2006
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Calsonic Kansai Corporation
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Hiromi Takasaki
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Double pipe
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Patent number 7,077,165
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Issue date Jul 18, 2006
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Calsonic Kansei Corporation
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Hiromi Takasaki
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F28 - HEAT EXCHANGE IN GENERAL
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Flexible hose
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Patent number 7,000,644
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Issue date Feb 21, 2006
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Calsonic Kansei Corporation
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Nobuo Ichimura
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B60 - VEHICLES IN GENERAL
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Duplex pipe end working method
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Patent number 6,895,652
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Issue date May 24, 2005
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Calsonic Kansei Corporation
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Hiromi Takasaki
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Duplex pipe end working method
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Patent number 6,658,717
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Issue date Dec 9, 2003
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Calsonic Kansei Corporation
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Hiromi Takasaki
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR