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Die cushion device
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Patent number 7,287,409
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Issue date Oct 30, 2007
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Komatsu Ltd.
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Kazuhiko Shiroza
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Controller for work transfer system
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Patent number 6,192,285
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Issue date Feb 20, 2001
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Komatsu Ltd.
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Yukiyoshi Takayama
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Transfer press
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Patent number 5,970,763
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Issue date Oct 26, 1999
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Komatsu Ltd.
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Yukiyoshi Takayama
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Transfer press
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Patent number 5,913,932
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Issue date Jun 22, 1999
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Komatsu Ltd.
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Yukiyoshi Takayama
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...