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经营范围
发明名称
COMMUNICATION SUPERVISORY SYSTEM
摘要
申请公布号
JPS6425648(A)
申请公布日期
1989.01.27
申请号
JP19870183162
申请日期
1987.07.22
申请人
NEC CORP
发明人
HARADA MASARU
分类号
H04M3/22;H04M15/00;H04M15/02;H04M15/12
主分类号
H04M3/22
代理机构
代理人
主权项
地址
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