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经营范围
发明名称
SIGNAL SWITCHING CIRCUIT
摘要
申请公布号
JPH01188124(A)
申请公布日期
1989.07.27
申请号
JP19880011971
申请日期
1988.01.22
申请人
NEC CORP
发明人
DOUMORI NORITOSHI
分类号
H04M3/22;H04B1/74
主分类号
H04M3/22
代理机构
代理人
主权项
地址
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