Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807837 | Method and apparatus for producing variable wall thickness tubes and hollow shafts | — | 2004-10-26 |
| 6779375 | Method and apparatus for producing tubes and hollow shafts | — | 2004-08-24 |
| 4799412 | Method for severing the ends of tubing | — | 1989-01-24 |
| 4616500 | Method for producing tubing of varying wall thickness | — | 1986-10-14 |