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发明名称
Dial pulse receiving circuit
摘要
申请公布号
US2580069(A)
申请公布日期
1951.12.25
申请号
US19490103689
申请日期
1949.07.08
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BLOUNT FRANK E.
分类号
H04Q1/32
主分类号
H04Q1/32
代理机构
代理人
主权项
地址
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