Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6724122 | Cover plate for an electric motor and an electric motor | Ronald Frey, Harald Schmidt, Johannes Helmich | 2004-04-20 |
| 6713917 | Drive device | Josef Klar, Johannes Helmich, Friedrich-Wilhelm Kaiser, Ronald Frey | 2004-03-30 |