Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726866 | Process and device for connecting together by heated-tool butt-welding a vessel body obtained by extrusion and a vessel lid | Gerrit J. Van Keimpema, Edward J. Farrington | 1988-02-23 |