Hikawa Masami

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rail type universal parallel ruler device
- Patent number 4,430,805
- Issue date Feb 14, 1984
- Mutoh Industry, Ltd.
- Hiroshi Mutoh
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Rail type universal parallel ruler device
- Patent number 4,312,132
- Issue date Jan 26, 1982
- Mutoh Industry, Ltd.
- Mutoh Hiroshi
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES