Keiji Kitamura

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Nishimiyahara, Yodogawa, Osaka, JA

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Patents Grantslast 30 patents

Information Patent Grant
Self-standing or phone mounted calendar
- Patent number 4,024,661
- Issue date May 24, 1977
- Keiji Kitamura
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS