Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4402637 | Self-drilling dowel | Paul Deutschenbaur | 1983-09-06 |
| 4291608 | Expansion dowel | Gusztav Lang, Friedrich Storck | 1981-09-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4402637 | Self-drilling dowel | Paul Deutschenbaur | 1983-09-06 |
| 4291608 | Expansion dowel | Gusztav Lang, Friedrich Storck | 1981-09-29 |