Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4903439 | Method for grinding rough-shaped objects to a clean spherical form | — | 1990-02-27 |
| 4483671 | Apparatus for making multilayer powder blanks | Martin B. Verburgh | 1984-11-20 |
| 4304443 | Linear motion ball bearing | — | 1981-12-08 |
| 4270033 | Brake-fluid level detector | — | 1981-05-26 |
| 4239299 | Ball bearing for linear motion | Carl Ullberg, Hendrik Cornelis Rekers, Horst M. Ernst, Manfred Brandenstein, Armin Olschewski +2 more | 1980-12-16 |