Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5223816 | Security and communication system with location detection | Samuel Levinson | 1993-06-29 |
| 4611198 | Security and communication system | Samuel Levinson | 1986-09-09 |
| 4523193 | Remote-controlled doorbell signal receiver | Samuel Levinson | 1985-06-11 |
| 4445581 | System for loading railroad cars | — | 1984-05-01 |
| 4401175 | System for weighing railroad cars in motion during loading | — | 1983-08-30 |