Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4614060 | Automatically actuated seal for sealing buildings, particularly doors and windows | Claude G. Dumenil | 1986-09-30 |
| 4348836 | Automatic base seal | Claude G. Dumenil | 1982-09-14 |
| 4283884 | Automatic base seal | Claude G. Dumenil | 1981-08-18 |