Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621514 | Method of making an intermediate stage, intermediate blank for a dynamo electric machine commutator ring, and apparatus to carry out the method | Peter Franz, Friedrich Klaas, Gunter Schulze | 1986-11-11 |