Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4361349 | Ring-packed pipe spigot-and-socket connection | Hansjorg Lauer | 1982-11-30 |
| 4342464 | Gasket for a socket-spigot connection | Hansjorg Lauer | 1982-08-03 |
| 4336009 | Molding tool | — | 1982-06-22 |
| 4326642 | Tubular case sealing means and method of manufacturing same | — | 1982-04-27 |