Tsutomu Ohtsuka

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for driving spindles of machine tools with induction motors
- Patent number 4,321,516
- Issue date Mar 23, 1982
- Toshiba Kikai Kabushiki Kaisha
- Tsutomu Ohtsuka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR