Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851647 | Process for welding butt-jointed plastic tubes and welding device for performing the process | — | 1989-07-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851647 | Process for welding butt-jointed plastic tubes and welding device for performing the process | — | 1989-07-25 |