Yoshinobu Ido

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Gifu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Communication device connected to telephone line together with tele...
- Patent number 5,109,407
- Issue date Apr 28, 1992
- Sanyo Electric Co., Ltd.
- Tsutomu Fujita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Visible telephone
- Patent number 5,077,784
- Issue date Dec 31, 1991
- Sanyo Electric Co., Ltd.
- Tsutomu Fujita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE