Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349219 | Welding muff of thermoplastic material | — | 1982-09-14 |
| 4349397 | Method and device for connecting pipe components made of weldable plastic | — | 1982-09-14 |
| 4334146 | Method and apparatus for joining thermoplastic line elements | — | 1982-06-08 |
| 4313053 | Welding sleeve of thermoplastic material | — | 1982-01-26 |