Invention Grant
- Patent Title: Marine propelling and steering mechanism
- Patent Title (中): 船舶推进和转向机制
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Application No.: US54142555Application Date: 1955-10-19
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Publication No.: US2834313APublication Date: 1958-05-13
- Inventor: FROHLICH WILLY O
- Applicant: FROHLICH WILLY O
- Assignee: Willy O Frohlich
- Current Assignee: Willy O Frohlich
- Priority: US54142555 1955-10-19
- Main IPC: B63H5/125
- IPC: B63H5/125
Information query
