Helicopter structures,申请号US19550504731-传众专利搜索

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发明名称	Helicopter structures
摘要
申请公布号	US2949254(A)	申请公布日期	1960.08.16
申请号	US19550504731	申请日期	1955.04.29
申请人	RICHARD BAUER	发明人	BAUER RICHARD
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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