Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4417877 | Water-jet drive mechanism for driving and controlling of particularly shallow-draught watercrafts | Franz Krautkremer, Gerd Krautkraemer | 1983-11-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4417877 | Water-jet drive mechanism for driving and controlling of particularly shallow-draught watercrafts | Franz Krautkremer, Gerd Krautkraemer | 1983-11-29 |