Sadahiro Kumamoto

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Fukuoka, JP

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Patents Grantslast 30 patents

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Shaft seal device for submersible motor
- Patent number 4,421,324
- Issue date Dec 20, 1983
- Mitsubishi Denki Kabushiki Kaisha
- Sakuei Yamamoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...