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发明名称
Switch bank contact cleaner
摘要
申请公布号
US2504709(A)
申请公布日期
1950.04.18
申请号
US19440533423
申请日期
1944.04.29
申请人
NORTHERN ELECTRIC COMPANY, LIMITED
发明人
LORIMER BERTRAM D.
分类号
H04Q1/20
主分类号
H04Q1/20
代理机构
代理人
主权项
地址
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