Osamu Maezawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electric numbering machine
- Patent number 4,406,551
- Issue date Sep 27, 1983
- Kabushiki Kaisha Gakushu Kenkyusha (Gakken Co., Ltd.)
- Osamu Maezawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS