Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4708038 | Method for machining and improved modified threaded collar | Dieter H. Hellnick, Gregory K. Otten | 1987-11-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4708038 | Method for machining and improved modified threaded collar | Dieter H. Hellnick, Gregory K. Otten | 1987-11-24 |