Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4629853 | Apparatus for the internal welding of pipes | Erik S. Yttergren, Karl U. H. Jansson, Karl-Erik Knipstrom | 1986-12-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4629853 | Apparatus for the internal welding of pipes | Erik S. Yttergren, Karl U. H. Jansson, Karl-Erik Knipstrom | 1986-12-16 |