Propeller,申请号US19290388869-传众专利搜索

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发明名称	Propeller
摘要
申请公布号	US2044295(A)	申请公布日期	1936.06.16
申请号	US19290388869	申请日期	1929.08.28
申请人	ALUMINUM COMPANY	发明人	HANDLER ALFRED A.
分类号	B64C11/20	主分类号	B64C11/20
代理机构		代理人
主权项
地址

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