Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4491350 | Coupling | Franz J. Wolf | 1985-01-01 |
| 4361349 | Ring-packed pipe spigot-and-socket connection | Franz J. Wolf | 1982-11-30 |
| 4342464 | Gasket for a socket-spigot connection | Franz J. Wolf | 1982-08-03 |