Richter; Ludwig
Patent Applications and Registrations
Patent applications and USPTO patent grants for Richter; Ludwig.The latest application filed is for "telephone instrument".
- Richter; Ludwig - Heusenstamm DE
- Richter; Ludwig - 34 Heusenstamm DE
- Richter; Ludwig - Rheinhausen DE
- Richter; Ludwig - Trappenkamp DT
| Patent | Date |
|---|---|
| Telephone instrument Grant 4,790,007 - Richter , et al. December 6, 1 | 1988-12-06 |
| Telephone set Grant D297,137 - Richter , et al. August 9, 1 | 1988-08-09 |
| Telephone set Grant D294,351 - Richter , et al. February 23, 1 | 1988-02-23 |
| Telephone set Grant D294,248 - Richter , et al. February 16, 1 | 1988-02-16 |
| Closed loop control circuitry for step motors Grant 4,658,194 - Richter , et al. April 14, 1 | 1987-04-14 |
| Artificial Insemination Of Sows Grant 3,791,384 - Richter , et al. February 12, 1 | 1974-02-12 |
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