Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4291608 | Expansion dowel | Gusztav Lang, Hans-Dieter Seghezzi | 1981-09-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4291608 | Expansion dowel | Gusztav Lang, Hans-Dieter Seghezzi | 1981-09-29 |