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发明名称
Method of welding and soldering
摘要
申请公布号
US2174628(A)
申请公布日期
1939.10.03
申请号
US19380193364
申请日期
1938.03.01
申请人
HANS GERULL
发明人
GERULL HANS
分类号
B23K5/00;H01J9/28
主分类号
B23K5/00
代理机构
代理人
主权项
地址
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