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发明名称
Hot top electrode tip
摘要
申请公布号
US2600823(A)
申请公布日期
1952.06.17
申请号
US19490071116
申请日期
1949.01.15
申请人
ALLEGHENY LUDLUM STEEL CORPORATION
发明人
ZACCAGNINI CONCEZIO L.
分类号
B22D27/06;H05B3/03
主分类号
B22D27/06
代理机构
代理人
主权项
地址
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