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经营范围
发明名称
RINGER CONTROL CIRCUIT
摘要
申请公布号
JPH04304055(A)
申请公布日期
1992.10.27
申请号
JP19910091000
申请日期
1991.03.30
申请人
ANRITSU CORP
发明人
KASHIWAKURA SHOICHI
分类号
H04M1/00
主分类号
H04M1/00
代理机构
代理人
主权项
地址
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