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经营范围
发明名称
Improvements in or relating to arc welding
摘要
申请公布号
GB713167(A)
申请公布日期
1954.08.04
申请号
GB19500028034
申请日期
1950.11.16
申请人
AGOSTINO NEPOTI
发明人
分类号
B23K35/30
主分类号
B23K35/30
代理机构
代理人
主权项
地址
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