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Satoshi Yonezawa
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Kobe, JP
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last 30 patents
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Patent Grant
Control device for hydraulic drive winch
Patent number
6,648,303
Issue date
Nov 18, 2003
Kolbelco Construction Machinery Co., Ltd.
Yoshio Nishimoto
B66 - HOISTING LIFTING HAULING
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Patent Grant
Control method for hydraulic-driven winch and apparatus therefor
Patent number
6,371,447
Issue date
Apr 16, 2002
Kobelco Construction Machinery Co., Ltd.
Etsujiro Imanishi
B66 - HOISTING LIFTING HAULING