Yasuo Wakabayashi

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Hisaki, Zushi, Kanagawa, JA

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Patents Grantslast 30 patents

Information Patent Grant
Segment type, electric light alpha-numeric figure indicator
- Patent number 4,058,919
- Issue date Nov 22, 1977
- Yasuo Wakabayashi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Digital indicator
- Patent number 3,961,432
- Issue date Jun 8, 1976
- Yasuo Wakabayashi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS