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发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPH03160898(A)
申请公布日期
1991.07.10
申请号
JP19890300500
申请日期
1989.11.17
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
KANEKO HIDEKI
分类号
H04M15/30;H04M1/00;H04Q3/58
主分类号
H04M15/30
代理机构
代理人
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