Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838111 | Limiting stop for the swinging angle of a pivoted arm | — | 1989-06-13 |
| 4829710 | Disengaging device | — | 1989-05-16 |
| 4818347 | Process for the isolation of vinyl acetate | Gunter Roscher, Hansjorg Hey, Horst Langner, Erwin Andereya | 1989-04-04 |
| 4802307 | Tilt-sliding mechanism for a window or door | — | 1989-02-07 |