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发明名称
AUTOMATIC ARC WELDING METHOD AND APPARATUS
摘要
申请公布号
GB1276015(A)
申请公布日期
1972.06.01
申请号
GB19690028269
申请日期
1969.06.04
申请人
NIPPON STEEL CORPORATION
发明人
分类号
B23K9/30
主分类号
B23K9/30
代理机构
代理人
主权项
地址
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