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经营范围
发明名称
Soderberg electrode suspension
摘要
申请公布号
US2580518(A)
申请公布日期
1952.01.01
申请号
US19490095996
申请日期
1949.05.28
申请人
SIEMENS SOCIETA PER AZIONI
发明人
CONTI GIAMPIETRO
分类号
H05B7/107
主分类号
H05B7/107
代理机构
代理人
主权项
地址
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