Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668619 | Device for locking an interchangeable, length-adjustable spectacle side-piece | — | 1997-09-16 |
| 5032017 | Spectacles comprising means for quickly fitting the side-pieces and the nose-piece | Maurice Bolle | 1991-07-16 |
| 4778419 | Reverse thrust propeller | Donald A. Henrich | 1988-10-18 |
| 4689837 | Eye shield with face engaging seal | — | 1987-09-01 |