Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4780582 | Use of a fusion material of copper and chrome as the contact material for vacuum contactors | Heinrich Haessler, Horst Kippenberg, Wilfried Kuhl, Joachim Grosse | 1988-10-25 |
| 4695687 | Contact arrangement for vacuum switches with axial magnetic field, and method for the production of the respective contact pieces | Joachim Grosse, Ruediger Hess, Wilfried Kuhl | 1987-09-22 |