Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4361954 | Method of and apparatus for the production of a toaster heating element | Helmut Ohnmacht | 1982-12-07 |
| 4352008 | Electric heating device for heating the interior of a switch cabinet | Helmut Ohnmacht | 1982-09-28 |