Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856703 | Method for drawing seamless metal tubing particularly copper tubing under inclusion of a floating mandrel and a diameter reducing die | — | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856703 | Method for drawing seamless metal tubing particularly copper tubing under inclusion of a floating mandrel and a diameter reducing die | — | 1989-08-15 |