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经营范围
发明名称
KEY TELEPHONE SYSTEM
摘要
申请公布号
JPH0353796(A)
申请公布日期
1991.03.07
申请号
JP19890189687
申请日期
1989.07.21
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
TAKE MICHIO
分类号
H04M3/42;H04Q3/58
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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