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发明名称
Gas welding and cutting tip
摘要
申请公布号
US2623577(A)
申请公布日期
1952.12.30
申请号
US19460679613
申请日期
1946.06.27
申请人
IRVING COWLES
发明人
COWLES IRVING
分类号
F23D14/54
主分类号
F23D14/54
代理机构
代理人
主权项
地址
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