Masahiro Shizawa

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Atsugi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dial unit detachably mounted on public telephone for equal access
- Patent number 5,086,456
- Issue date Feb 4, 1992
- Anritsu Corporation
- Masahiro Shizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone set
- Patent number 4,837,814
- Issue date Jun 6, 1989
- Anritsu Corporation
- Yutaka Yoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE