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Hidetoshi Hamaoka
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Hitachi, JP
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last 30 patents
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Patent Grant
Apparatus for making diagnosis of valve device in turbine system
Patent number
4,523,286
Issue date
Jun 11, 1985
Hitachi, Ltd.
Tsuguaki Koga
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES