Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4483544 | Socket pipe seal for concrete pipes | Hans-Theo Weingarten, Rudolf Rosgen, Benno Wedekind | 1984-11-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4483544 | Socket pipe seal for concrete pipes | Hans-Theo Weingarten, Rudolf Rosgen, Benno Wedekind | 1984-11-20 |