Katsuyuki Kawahara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for controlling the operation of a water turbine or a pum...
- Patent number 4,475,865
- Issue date Oct 9, 1984
- Tokyo Shibaura Denki Kabushiki Kaisha
- Kaneo Sugishita
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...