Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5136521 | Punching machine with controlled punch and die positioning and controlled punch operating stroke | Zwaaftink Groot | 1992-08-04 |
| 4951495 | Machine tool with C-shaped frame | Antonius H. Groot Zwaaftink | 1990-08-28 |
| 4690718 | Apparatus for and method of making the cable core of a telecommunication cable water-tight in the longitudinal direction | Johannis A. B. M. Laugs, Gerrit H. van den Berg, Edward D. Reinders | 1987-09-01 |