Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841164 | Light-sensitive switch structure and method with inverse off/on ratio | — | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841164 | Light-sensitive switch structure and method with inverse off/on ratio | — | 1989-06-20 |