Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880980 | Intrusion detector | Hansjurg Mahler | 1989-11-14 |
| 4847488 | Sabotage resistant light barrier wherein radiation is polarized into two opposite types of polarization | Alfred Wuthrich | 1989-07-11 |
| 4840108 | Apparatus for the infeed of ammunition from an ammunition container to an automatic firing weapon | Ernst Hurlemann, Bruno Ruppen | 1989-06-20 |
| 4840109 | Apparatus for delivering ammunition from a container structure to a firing weapon | Erwin Bohler | 1989-06-20 |