Invention Grant
- Patent Title: Helicopter rotors
- Patent Title (中): 直升机转子
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Application No.: US25159363Application Date: 1963-01-15
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Publication No.: US3158203APublication Date: 1964-11-24
- Inventor: JEAN GRUNFELDER
- Applicant: SUD AVIATION
- Assignee: Sud Aviation
- Current Assignee: Sud Aviation
- Main IPC: B64C27/50
- IPC: B64C27/50
Information query
