Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6453710 | Method and apparatus for manufacturing a helically-wound lock-seam tube having air nozzles | Rudolf Binggeli | 2002-09-24 |
| 6073977 | Device for coupling pipe sections | Hans Schmidt-Hansen | 2000-06-13 |
| 6062610 | Device for the coupling together of pipes | Pontus Andersson | 2000-05-16 |
| 6030005 | Method and device for coupling pipes | Pontus Andersson | 2000-02-29 |
| 5649662 | Method and a pipe element for providing a radially outwards directed bead at the end rim of a pipe | Peter Krichau | 1997-07-22 |
| D377829 | Component for a ventilation duct system | — | 1997-02-04 |