Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4685050 | Method of tightening threaded fasteners | Johann Roemischer | 1987-08-04 |
| 4467877 | Power tool, in particular a hand-held compressed air screwdriver | Jurgen K. D. Koltermann, Dieter Stein, Eugen Mattheiss | 1984-08-28 |
| 4320806 | Power tool, in particular a hand-held compressed air screw driver | Jurgen K. D. Koltermann, Dieter Stein, Eugen Mattheiss | 1982-03-23 |