Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4663031 | Percussion jig | Otto Heinemann, Gunter Milewski, Norbert Schroder | 1987-05-05 |
| 4597867 | Air-controlled settling apparatus | Otto Heinemann, Heinz-Dieter Baldus, Armin Supp, Helmut Thieme, Heinz Rasch | 1986-07-01 |