Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372208 | Tube section having slots for sampling | — | 1994-12-13 |
| 4821818 | Tube auger sections | — | 1989-04-18 |
| 4387845 | Method and apparatus for holding and cooling a metal tube during welding | — | 1983-06-14 |
| 4384511 | Hydraulic cylinder | — | 1983-05-24 |
| D264299 | Hand tool for loosening or tightening nuts in place of a spanner wrench | — | 1982-05-11 |
| 4299144 | Hand tool and method for using same | — | 1981-11-10 |