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发明名称
WELDING TORCHES
摘要
申请公布号
CA573658(A)
申请公布日期
1959.04.07
申请号
CAD573658
申请日期
申请人
THE BRITISH OXYGEN CANADA LIMITED
发明人
FRANCIS W. COPLESTON
分类号
主分类号
代理机构
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