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发明名称
Welding machine
摘要
申请公布号
US1750050(A)
申请公布日期
1930.03.11
申请号
US19270200568
申请日期
1927.06.22
申请人
THE RANDALL COMPANY
发明人
RANDALL HOWARD D.
分类号
B23K11/00
主分类号
B23K11/00
代理机构
代理人
主权项
地址
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DISPERSANT
Battery separator with sodium sulfate
