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发明名称
Electrode holder
摘要
申请公布号
US2390936(A)
申请公布日期
1945.12.11
申请号
US19440524410
申请日期
1944.02.29
申请人
HALL PRESTON M
发明人
HALL PRESTON M.
分类号
B23K11/31
主分类号
B23K11/31
代理机构
代理人
主权项
地址
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