Mitsuyoshi Hasegawa

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Katsuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
D.C. vacuum circuit breaker for an electric motor vehicle
- Patent number 5,214,557
- Issue date May 25, 1993
- Hitachi, Ltd.
- Mitsuyoshi Hasegawa
- H01 - BASIC ELECTRIC ELEMENTS