Method of manufacturing can closures,申请号US19300441447-传众专利搜索

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发明名称	Method of manufacturing can closures
摘要
申请公布号	US1848012(A)	申请公布日期	1932.03.01
申请号	US19300441447	申请日期	1930.04.04
申请人	R. B. DAVIS COMPANY	发明人	HIRSCH LEONARD;HARRISS EDWIN A.
分类号	B21D51/38;B65D17/50	主分类号	B21D51/38
代理机构		代理人
主权项
地址

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