Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357892 | Apparatus for warning of the increase in draught of a floating article, especially a small boat, in a surrounding liquid | Jan E. Gismervik | 1982-11-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357892 | Apparatus for warning of the increase in draught of a floating article, especially a small boat, in a surrounding liquid | Jan E. Gismervik | 1982-11-09 |