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发明名称
Circuit selector device
摘要
申请公布号
US2965811(A)
申请公布日期
1960.12.20
申请号
US19570677082
申请日期
1957.08.08
申请人
BATCHER RALPH R
发明人
BATCHER RALPH R.
分类号
G01R1/20;H01R13/64
主分类号
G01R1/20
代理机构
代理人
主权项
地址
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