Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825048 | Seat heater for integrated assembly into car seats | Horst-Dieter Altmann | 1989-04-25 |
| 4817271 | Apparatus for the manufacture of a flexible heating appliance | Dieter Altmann | 1989-04-04 |