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发明名称
Arc welding apparatus
摘要
申请公布号
US3047714(A)
申请公布日期
1962.07.31
申请号
US19590812626
申请日期
1959.05.12
申请人
A. O. SMITH CORPORATION
发明人
WEPFER GEORGE R.
分类号
B23K9/173
主分类号
B23K9/173
代理机构
代理人
主权项
地址
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