Norihiko Yamamoto

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Toyonaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Jig for cross hatching test
- Patent number 5,056,228
- Issue date Oct 15, 1991
- Taiyu Kizai Co., Ltd.
- Norihiko Yamamoto
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES