Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4652821 | Device including selectively actuatable sensors and a multiplexer-demultiplexer for contact-free positional measurement of electronic position indicators | — | 1987-03-24 |
| 4602253 | Apparatus for mutual information transmission in a lock and key system | — | 1986-07-22 |
| 4549176 | Device for identifying an information particularly an electronic lock/key combination | — | 1985-10-22 |