Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4280771 | Apparatus for distributing concrete, especially in the shuttering of gallery linings in mine and tunnel workings | Karl-Ernst von Eckardstein | 1981-07-28 |
| 4191513 | Pump for conveying cement | — | 1980-03-04 |