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发明名称
Process for welding ferrous metal
摘要
申请公布号
GB493927(A)
申请公布日期
1938.10.17
申请号
GB19370000755
申请日期
1937.01.11
申请人
WARD HOLT BROADFIELD
发明人
分类号
B23K31/02
主分类号
B23K31/02
代理机构
代理人
主权项
地址
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