Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5205074 | Counterbalanced window operators | James C. Guhl, Hartmut Ginnow-Merkert, Harald Tomanek | 1993-04-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5205074 | Counterbalanced window operators | James C. Guhl, Hartmut Ginnow-Merkert, Harald Tomanek | 1993-04-27 |