BALDWIN PIANO Co
BALDWIN PIActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3043962A | Optical encoder | Expired / Lapsed | 1959-08-18 | 1962-07-10 | 0 | Details |
| US3004460A | Audio modulation system | Expired / Lapsed | 1956-12-31 | 1961-10-17 | 0 | Details |
| US2959693A | Key switching system for electrical musical instruments | Expired / Lapsed | 1955-12-30 | 1960-11-08 | 0 | Details |
| US2949539A | Optical encoder | Expired / Lapsed | 1956-11-21 | 1960-08-16 | 0 | Details |
| US2916706A | Audio modulator | Expired / Lapsed | 1956-12-31 | 1959-12-08 | 0 | Details |
| US2888632A | Transistor current regulating circuits | Expired / Lapsed | 1956-08-23 | 1959-05-26 | 0 | Details |