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经营范围
发明名称
TONE SIGNAL DETECTION CIRCUIT
摘要
申请公布号
JPH11163748(A)
申请公布日期
1999.06.18
申请号
JP19970340619
申请日期
1997.11.26
申请人
OKI ELECTRIC IND CO LTD
发明人
SHINPO ATSUSHI
分类号
H04B1/10;H04Q1/44;(IPC1-7):H04B1/10
主分类号
H04B1/10
代理机构
代理人
主权项
地址
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