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经营范围
发明名称
TONE DETECTING CIRCUIT
摘要
申请公布号
JPS6367947(A)
申请公布日期
1988.03.26
申请号
JP19860213482
申请日期
1986.09.10
申请人
NEC CORP
发明人
SUZUKI TAKAMI
分类号
H03H17/04;H03H17/00;H04L27/00
主分类号
H03H17/04
代理机构
代理人
主权项
地址
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