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发明名称
électrode de tantale perfectionnée
摘要
申请公布号
FR672664(A)
申请公布日期
1930.01.06
申请号
FRD672664
申请日期
1928.07.13
申请人
发明人
KNECHT LOUIS
分类号
H01G9/00;H01G9/008
主分类号
H01G9/00
代理机构
代理人
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