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发明名称
Device for expelling static charges from dielectrical substances
摘要
申请公布号
US2473751(A)
申请公布日期
1949.06.21
申请号
US19480010536
申请日期
1948.02.24
申请人
JOHNSON HOWARD R
发明人
JOHNSON HOWARD R.
分类号
H05F3/00
主分类号
H05F3/00
代理机构
代理人
主权项
地址
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