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经营范围
发明名称
Arc welding apparatus
摘要
申请公布号
US1895699(A)
申请公布日期
1933.01.31
申请号
US19300473874
申请日期
1930.08.08
申请人
A. O. SMITH CORPORATION
发明人
JR. ADAM ZISKA,
分类号
B23K9/133
主分类号
B23K9/133
代理机构
代理人
主权项
地址
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