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发明名称
Selecting circuit
摘要
申请公布号
US3003143(A)
申请公布日期
1961.10.03
申请号
US19590816505
申请日期
1959.05.28
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BEURRIER HENRY R.
分类号
主分类号
代理机构
代理人
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