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发明名称
Coated welding electrode
摘要
申请公布号
US1937574(A)
申请公布日期
1933.12.05
申请号
US19330664710
申请日期
1933.04.06
申请人
JOHN A. ROEBLING'S SONS COMPANY
发明人
JOHNSTON ROBERT S.
分类号
B23K35/02;B23K35/04;B23K35/10
主分类号
B23K35/02
代理机构
代理人
主权项
地址
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