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经营范围
发明名称
Welding apparatus
摘要
申请公布号
US2183473(A)
申请公布日期
1939.12.12
申请号
US19370127038
申请日期
1937.02.23
申请人
UNA WELDING, INC.
发明人
BURGETT LYNN S.
分类号
B23K9/12
主分类号
B23K9/12
代理机构
代理人
主权项
地址
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