Method of forming bungs in metallic plates,申请号US19470745881-传众专利搜索

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发明名称	Method of forming bungs in metallic plates
摘要
申请公布号	US2460721(A)	申请公布日期	1949.02.01
申请号	US19470745881	申请日期	1947.05.03
申请人	INLAND STEEL COMPANY	发明人	THOMPSON ROY J.
分类号	B21D51/40;B65D39/08	主分类号	B21D51/40
代理机构		代理人
主权项
地址

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