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发明名称
Welding flux
摘要
申请公布号
US2284619(A)
申请公布日期
1942.06.02
申请号
US19390294854
申请日期
1939.09.14
申请人
PEREZ EPSTEIN
发明人
EPSTEIN PEREZ
分类号
B23K35/36
主分类号
B23K35/36
代理机构
代理人
主权项
地址
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