Process of refining hard tin,申请号US19320644076-传众专利搜索

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发明名称	Process of refining hard tin
摘要
申请公布号	US1964948(A)	申请公布日期	1934.07.03
申请号	US19320644076	申请日期	1932.11.23
申请人	THE AMERICAN BRASS COMPANY	发明人	HIBBARD WALTER R.;CANDEE ELLSWORTH T.
分类号	C25C1/14	主分类号	C25C1/14
代理机构		代理人
主权项
地址

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