Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4610381 | Drywall tool | Francis J. Kramer, Donald J. Massari, Jr. | 1986-09-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4610381 | Drywall tool | Francis J. Kramer, Donald J. Massari, Jr. | 1986-09-09 |