Nippon Tsushin Kogyo Kabushiki Kaisha
Patent Applications and Registrations
Patent applications and USPTO patent grants for Nippon Tsushin Kogyo Kabushiki Kaisha.The latest application filed is for "key telephone set".
- Nippon Tsushin Kogyo Kabushiki Kaisha - Kanagawa JP
- Nippon Tsushin Kogyo Kabushiki Kaisha - Kawasaki JP
| Patent | Date |
|---|---|
| Key telephone set Grant D283,508 - Miyake April 22, 1 | 1986-04-22 |
| Main key telephone system casing Grant D282,541 - Yasuda February 11, 1 | 1986-02-11 |
| Push button Grant D282,067 - Inaba January 7, 1 | 1986-01-07 |
| Telephone set Grant D280,617 - Inaba September 17, 1 | 1985-09-17 |
| Telephone set Grant D280,404 - Inaba September 3, 1 | 1985-09-03 |
| Telephone handset Grant D279,896 - Inaba July 30, 1 | 1985-07-30 |
| Electronic intercommunication unit Grant D279,471 - Nakashima July 2, 1 | 1985-07-02 |
| Key telephone system Grant 4,412,102 - Ogawa , et al. * October 25, 1 | 1983-10-25 |
| Key telephone system Grant 4,347,409 - Ogawa , et al. August 31, 1 | 1982-08-31 |
| Ceramic material of low thermal expansion coefficient and method of manufacturing the same Grant 4,105,456 - Murakami , et al. August 8, 1 | 1978-08-08 |
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