Tenovis GmbH and Co KG
Tenovis GmActive Patents
0
Total Holdings
11
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP0467071A2 | Calling device for telecommunication terminals | Expired / Lapsed | 1991-06-13 | — | 0 | Details |
| DE3238092A1 | Line-independent power supply for telecommunications equipm… | Expired / Lapsed | 1982-10-14 | — | 0 | Details |
| DE2832374B1 | Method for operating a hands-free device connected to a tel… | Expired / Lapsed | 1978-07-24 | — | 0 | Details |
| DE2636848A1 | Telephone with loudspeaker and amplifier - includes wall mo… | Expired / Lapsed | 1976-08-16 | — | 0 | Details |
| DE1957883A1 | Voice-controlled hands-free system | Expired / Lapsed | 1969-11-18 | — | 0 | Details |
| DE1007216B | Circuit arrangement for a person search device with storage… | Expired / Lapsed | 1955-05-09 | — | 0 | Details |
| DE3404335C2 | Circuit arrangement for line feeding of additional devices … | Expired / Lapsed | 1984-02-08 | 1985-08-22 | 0 | Details |
| DE3335013C1 | Telephone call recorder | Expired / Lapsed | 1983-09-28 | 1985-03-28 | 0 | Details |
| US3022383A | Rotatable electromagnetic transducer system | Expired / Lapsed | 1956-10-29 | 1962-02-20 | 0 | Details |
| DE737882C | Choke coil with adjustable self-induction | Expired / Lapsed | 1939-07-23 | 1943-07-28 | 0 | Details |
| DE708477C | Device for speed control of alternators with the help of an… | Expired / Lapsed | 1936-10-01 | 1941-07-22 | 0 | Details |