Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885887 | Apparatus and method for securing an outer roofing membrane to an insulated roof deck | Robert W. Simmons, Richard W. Stamper | 1989-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885887 | Apparatus and method for securing an outer roofing membrane to an insulated roof deck | Robert W. Simmons, Richard W. Stamper | 1989-12-12 |