Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828007 | Process for selectively compressing granular material in a molding box | Hans Leutwiler | 1989-05-09 |
| 4828013 | Molding equipment for the production of a casting mold | — | 1989-05-09 |
| 4801730 | Process for the preparation of fatty acid nitriles and glycerol from glycerides | Herbert Stuhler | 1989-01-31 |