Hélicoptère,申请号FRD722065-传众专利搜索

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发明名称	Hélicoptère
摘要
申请公布号	FR722065(A)	申请公布日期	1932.03.11
申请号	FRD722065	申请日期	1931.07.24
申请人		发明人	GROTHE GREGOR;BIESEMANN JOSEF
分类号	B64C27/04	主分类号	B64C27/04
代理机构		代理人
主权项
地址

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