Method of making sheet metal caps,申请号US19330662911-传众专利搜索

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发明名称	Method of making sheet metal caps
摘要
申请公布号	US2018022(A)	申请公布日期	1935.10.22
申请号	US19330662911	申请日期	1933.03.27
申请人	THE CLOSURE SERVICE COMPANY	发明人	JOHNSON EDWARD H.
分类号	B21D51/50	主分类号	B21D51/50
代理机构		代理人
主权项
地址

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