Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from GB9022281 external-priority Application filed by Westland Helicopters Ltd filed Critical Westland Helicopters Ltd Assigned to WESTLAND HELICOPTERS LIMITED reassignment WESTLAND HELICOPTERS LIMITED ASSIGNMENT OF ASSIGNORS INTEREST. Original Assignee Westland Helicopters Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US07/774,359 Inventor Alan Brocklehurst Current Assignee (The listed assignees may be inaccurate. Google Patents US5174721A - Helicopter rotor bladesÄownload PDF Info Publication number US5174721A US5174721A US07/774,359 US77435991A US5174721A US 5174721 A US5174721 A US 5174721A US 77435991 A US77435991 A US 77435991A US 5174721 A US5174721 A US 5174721A Authority US United States Prior art keywords leading edge blade notch region degrees swept Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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