Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4902174 | Main line tapping apparatus | Clifford F. Thompson | 1990-02-20 |
| 4556207 | Clamping apparatus for plastic pipe | Clifford F. Thompson | 1985-12-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4902174 | Main line tapping apparatus | Clifford F. Thompson | 1990-02-20 |
| 4556207 | Clamping apparatus for plastic pipe | Clifford F. Thompson | 1985-12-03 |