Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4231594 | Pipe joint structure | Theodor Merkle, Hermann Schweickert, Dieter Wengert | 1980-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4231594 | Pipe joint structure | Theodor Merkle, Hermann Schweickert, Dieter Wengert | 1980-11-04 |