Punch and die,申请号US19430490472-传众专利搜索

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发明名称	Punch and die
摘要
申请公布号	US2348875(A)	申请公布日期	1944.05.16
申请号	US19430490472	申请日期	1943.06.11
申请人	BEARD CHARLES L	发明人	BEARD CHARLES L.
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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