Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671390 | Converter-powered drive for an elevator | Hansruedi Liechti | 1987-06-09 |
| 4598354 | Data input and output device for a drive regulation apparatus operated by a digital computer | Gerhard Kindler | 1986-07-01 |