Helicopter rotor system,申请号US19640387037-传众专利搜索

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发明名称	Helicopter rotor system
摘要
申请公布号	US3289770(A)	申请公布日期	1966.12.06
申请号	US19640387037	申请日期	1964.08.03
申请人	BOLKOW GESELLSCHAFT MIT BESCHRANKTER HAFTUNG	发明人	DERSCHMIDT HANS
分类号	B64C27/00;B64C27/39;B64C27/54	主分类号	B64C27/00
代理机构		代理人
主权项
地址

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