Levinson; Samuel H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Levinson; Samuel H..The latest application filed is for "security and communication system with location detection".
- Levinson; Samuel H. - Glencoe IL
| Patent | Date |
|---|---|
| Security and communication system with location detection Grant 5,223,816 - Levinson , et al. June 29, 1 | 1993-06-29 |
| Parallel encoded piezoelectric keyboard switch and array Grant 4,712,092 - Boldridge, Jr. , et al. December 8, 1 | 1987-12-08 |
| Security and communication system Grant 4,611,198 - Levinson , et al. September 9, 1 | 1986-09-09 |
| Remote-controlled doorbell signal receiver Grant 4,523,193 - Levinson , et al. June 11, 1 | 1985-06-11 |
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