Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5259147 | Granular abrasive material | Wolfgang Falz, Herbert Exner | 1993-11-09 |
| 4393021 | Method for the manufacture of granular grit for use as abrasives | Gustav Eisenberg | 1983-07-12 |
| 4386943 | Treated polyester fabric for use in flexible abrasives | Harald Gumbel | 1983-06-07 |