Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850621 | Structure having interconnected metal tubes | — | 1989-07-25 |
| 4844379 | Slender pipe fixing clamp | — | 1989-07-04 |
| 4832377 | Arrangement for fixing end of thin-walled pipe to flange coupling | — | 1989-05-23 |
| 4826114 | Pipe and clamp combination | — | 1989-05-02 |
| 4819970 | Thin flexible metal tube | — | 1989-04-11 |