Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789134 | Forcible entry tool | John B. Tenuto, Jr., Arthur V. Williams, Hans E. Karreman | 1988-12-06 |
| 4637079 | Backflow preventing attachment for toilets | — | 1987-01-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789134 | Forcible entry tool | John B. Tenuto, Jr., Arthur V. Williams, Hans E. Karreman | 1988-12-06 |
| 4637079 | Backflow preventing attachment for toilets | — | 1987-01-20 |