Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346780 | Purging pipes under noise-attenuating conditions | Heinz Packschies, Wilhelm Feldman | 1982-08-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346780 | Purging pipes under noise-attenuating conditions | Heinz Packschies, Wilhelm Feldman | 1982-08-31 |