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经营范围
发明名称
DTMF SIGNAL RECEPTION CIRCUIT
摘要
申请公布号
JPH04200147(A)
申请公布日期
1992.07.21
申请号
JP19900334845
申请日期
1990.11.29
申请人
ROHM CO LTD
发明人
NODA MITSUHIKO
分类号
H04M1/65;H04M11/00;H04Q1/45
主分类号
H04M1/65
代理机构
代理人
主权项
地址
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