Telenorma Telefonbau und Normalzeit GmbH
Patent Applications and Registrations
Patent applications and USPTO patent grants for Telenorma Telefonbau und Normalzeit GmbH.The latest application filed is for "electrical components".
- Telenorma Telefonbau und Normalzeit GmbH - Frankfurt am Main DE
- Telenorma Telefonbau und Normalzeit GmbH - DE DE
- Telenorma Telefonbau und Normalzeit GmbH - Franfurt am Main DE
| Patent | Date |
|---|---|
| Electrical components Grant 5,006,920 - Schafer , et al. April 9, 1 | 1991-04-09 |
| Video conference installation Grant 4,995,071 - Weber , et al. February 19, 1 | 1991-02-19 |
| Voice controlled attenuation adjustment in telephone transmission circuits Grant 4,991,167 - Petri , et al. February 5, 1 | 1991-02-05 |
| Arrangement for main distribution frames Grant 4,813,880 - Kramer , et al. March 21, 1 | 1989-03-21 |
| Telephone instrument Grant 4,790,007 - Richter , et al. December 6, 1 | 1988-12-06 |
| Terminal for a telecommunications switching system having an additional keyboard and/or visual display Grant 4,782,522 - Kramer , et al. November 1, 1 | 1988-11-01 |
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