Dimpling apparatus having a resiliently supported ram,申请号US19540434507-传众专利搜索

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发明名称	Dimpling apparatus having a resiliently supported ram
摘要
申请公布号	US2864427(A)	申请公布日期	1958.12.16
申请号	US19540434507	申请日期	1954.06.04
申请人	NORTH AMERICAN AVIATION, INC.	发明人	STRATMAN WILLIAM C.
分类号	B21D22/04	主分类号	B21D22/04
代理机构		代理人
主权项
地址

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