Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832379 | Collet grip riser fitting | William B. Smith, Elmer V. Rogers Jr., John A. Spisak | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832379 | Collet grip riser fitting | William B. Smith, Elmer V. Rogers Jr., John A. Spisak | 1989-05-23 |