Yoshio Midorikawa

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Tokyo, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a marking pen having a nib and an ink reser...
- Patent number 4,119,756
- Issue date Oct 10, 1978
- Glasrock Products, Inc.
- Yoshio Midorikawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES