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发明名称
Electrode positioning device
摘要
申请公布号
US2900556(A)
申请公布日期
1959.08.18
申请号
US19570695796
申请日期
1957.11.12
申请人
ALLEGHENY LUDLUM STEEL CORPORATION
发明人
GIFFORD PAUL B.
分类号
H05B7/109
主分类号
H05B7/109
代理机构
代理人
主权项
地址
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