Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841136 | Sighting apparatus with automatic correction mechanism | Tomoya Sada | 1989-06-20 |
| 4807966 | Sighting apparatus | Tomoya Sada | 1989-02-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841136 | Sighting apparatus with automatic correction mechanism | Tomoya Sada | 1989-06-20 |
| 4807966 | Sighting apparatus | Tomoya Sada | 1989-02-28 |