Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358122 | Apparatus for power clamping work pieces | Heinz vom Dorp | 1982-11-09 |
| 4195957 | Boring tool with floating double edged knife | Helmut Wittkopp, Garrj Berstein, Willi Hansen | 1980-04-01 |