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发明名称
Electric arc welding
摘要
申请公布号
US2763755(A)
申请公布日期
1956.09.18
申请号
US19520311870
申请日期
1952.09.27
申请人
GRAHAM MANUFACTURING CORPORATION
发明人
GRAHAM HAROLD J.
分类号
B23K9/073;B23K9/20
主分类号
B23K9/073
代理机构
代理人
主权项
地址
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