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经营范围
发明名称
Soldering flux
摘要
申请公布号
US2279828(A)
申请公布日期
1942.04.14
申请号
US19400372496
申请日期
1940.12.31
申请人
L. SONNEBORN SONS, INC.
发明人
LIBERTHSON LEO
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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