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发明名称
TELEPHONE SYSTEM
摘要
申请公布号
JPH02188092(A)
申请公布日期
1990.07.24
申请号
JP19890006926
申请日期
1989.01.14
申请人
MATSUSHITA ELECTRIC WORKS LTD
发明人
HAMADA AKIHIKO
分类号
H04M9/00;H04Q3/58
主分类号
H04M9/00
代理机构
代理人
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