Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345235 | Variable resistance device having a resistance element with laser cuts | Richard E. Riley | 1982-08-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345235 | Variable resistance device having a resistance element with laser cuts | Richard E. Riley | 1982-08-17 |