Yoshiyuki Umemoto

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Device for tightening bolt and/or nut
- Patent number 6,053,080
- Issue date Apr 25, 2000
- Maeda Metal Industries, Ltd.
- Yasunobu Kaneyama
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS