Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4670875 | Multiplexed dual tone multi-frequency encoding/decoding system for remote control applications | — | 1987-06-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4670875 | Multiplexed dual tone multi-frequency encoding/decoding system for remote control applications | — | 1987-06-02 |