Shigehiro Eda

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pay phone call control apparatus for allowing calls using pre-paid...
- Patent number 5,563,934
- Issue date Oct 8, 1996
- Tamura Electric Works, Ltd.
- Shigehiro Eda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Public telephone set
- Patent number 4,819,261
- Issue date Apr 4, 1989
- Tamura Electric Works
- Yoshiaki Takeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE