Ribbed core for steel blades,申请号US19490121317-传众专利搜索

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发明名称	Ribbed core for steel blades
摘要
申请公布号	US2600048(A)	申请公布日期	1952.06.10
申请号	US19490121317	申请日期	1949.10.14
申请人	UNITED AIRCRAFT CORPORATION	发明人	CONWELL CHARLES B.
分类号	B63H1/12;B64C11/24;F01D5/18	主分类号	B63H1/12
代理机构		代理人
主权项
地址

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