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经营范围
发明名称
SPEECH INTERCOMMUNICATION SYSTEM
摘要
申请公布号
US4051325(A)
申请公布日期
1977.09.27
申请号
US19760652847
申请日期
1976.01.27
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人
MAFUNE, YASUO;TAKAHASHI, JUHEI
分类号
H04M9/10;(IPC1-7):H04M9/10
主分类号
H04M9/10
代理机构
代理人
主权项
地址
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