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Masayuki Uchiyama
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Hitachi, JP
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Patents Grants
last 30 patents
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Patent Grant
Hydraulic pressure actuating apparatus for circuit breaker
Patent number
6,815,629
Issue date
Nov 9, 2004
Hitachi, Ltd.
Shinji Seto
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Patents Applications
last 30 patents
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Patent Application
Hydraulic pressure actuating apparatus for circuit breaker
Publication number
20030213774
Publication date
Nov 20, 2003
Hitachi, Ltd.
Shinji Seto
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL