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发明名称
METHOD FOR CONTROLLING CONNECTION OF TELEPHONE LINE
摘要
申请公布号
JPH02244960(A)
申请公布日期
1990.09.28
申请号
JP19890065104
申请日期
1989.03.17
申请人
NAGATA SEIICHI
发明人
NAGATA SEIICHI
分类号
H04M3/42;H04Q3/42;H04Q3/58
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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