Autophon AG
Autophon AActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP0046623A2 | Installation for the recording of oral messages directed to… | Expired / Lapsed | 1981-08-20 | — | 0 | Details |
| EP0018940A1 | Portable radio set with battery part separable from transce… | Expired / Lapsed | 1980-04-02 | — | 0 | Details |
| GB850631A | Telephone substation including device for pre-setting multi… | Expired / Lapsed | 1958-06-23 | — | 0 | Details |
| US4092600A | Installation for two-way radio communication | Expired / Lapsed | 1976-08-11 | 1978-05-30 | 4 | Details |
| US2558853A | Device for inserting corrections in a sequence of recorded … | Expired / Lapsed | 1948-01-16 | 1951-07-03 | 0 | Details |
| US2424069A | Voice operated switch for a duplex system | Expired / Lapsed | 1945-07-16 | 1947-07-15 | 0 | Details |
| US2262321A | Telegraph transmitter | Expired / Lapsed | 1938-08-17 | 1941-11-11 | 0 | Details |