Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5176279 | Container cap | Paul R. Campbell, John C. Woodlock | 1993-01-05 |
| 4500233 | Rotary material removing tool | — | 1985-02-19 |
| 4493596 | Rotary material removing tool | Manfred Grunsky, Reiner Sussmuth, Gunter Ischen | 1985-01-15 |
| 4464088 | Device for making holes | — | 1984-08-07 |