Katsuhiko Sumida

Follow

Person

Nagoya, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Throw away tip
- Patent number 5,143,487
- Issue date Sep 1, 1992
- NGK Spark Plug Co., Ltd.
- Makoto Shirai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR