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发明名称
Improvements in or relating to a method of welding together metal members at least one of which is tubular
摘要
申请公布号
GB495696(A)
申请公布日期
1938.11.16
申请号
GB19370004662
申请日期
1937.02.16
申请人
STEEL AND TUBES, INC.
发明人
分类号
B23K11/00
主分类号
B23K11/00
代理机构
代理人
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地址
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