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发明名称
Improvements in and relating to the welding of butting hollow articles
摘要
申请公布号
GB684793(A)
申请公布日期
1952.12.24
申请号
GB19500022774
申请日期
1950.09.15
申请人
HUETTENWERK HUCKINGEN AG. DUISBURG
发明人
分类号
B23K9/00
主分类号
B23K9/00
代理机构
代理人
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