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发明名称
Selector brush
摘要
申请公布号
US1859470(A)
申请公布日期
1932.05.24
申请号
US19310529056
申请日期
1931.04.10
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
ROAD RICHARD A.;REDMOND FREDERIC J.
分类号
H01H63/04
主分类号
H01H63/04
代理机构
代理人
主权项
地址
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