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经营范围
发明名称
Recovery of zinc, lead, tin, and cadmium values
摘要
申请公布号
US1973590(A)
申请公布日期
1934.09.11
申请号
US19310549302
申请日期
1931.07.07
申请人
ST. JOSEPH LEAD COMPANY
发明人
WEATON GEORGE F.;NAJARIAN HERAND K.;DOWD WILLIAM C.
分类号
C22B19/36
主分类号
C22B19/36
代理机构
代理人
主权项
地址
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