Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D339641 | Frame member for constructing a duct | Carl-Eric Jaderberg | 1993-09-21 |
| D335173 | Coupling element for connecting the flanged ends of ducts | Carl-Eric Jaderberg | 1993-04-27 |