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经营范围
发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPH05130662(A)
申请公布日期
1993.05.25
申请号
JP19910104681
申请日期
1991.04.10
申请人
NITSUKO CORP
发明人
OKUMIYA MASAHIKO;YANAI TAKAMICHI;UJIIE KOJI
分类号
H04M1/57;H04M9/00;H04Q3/58
主分类号
H04M1/57
代理机构
代理人
主权项
地址
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