Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4790689 | Method and apparatus for producing a support element in the ground | Manfred Stocker, Erwin Stotzer, Konrad Friedrich, Thomas Bauer | 1988-12-13 |
| 4402532 | Detachable pipe joint | — | 1983-09-06 |