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经营范围
发明名称
INTERPHONE SYSTEM
摘要
申请公布号
JPH11168714(A)
申请公布日期
1999.06.22
申请号
JP19970336181
申请日期
1997.12.05
申请人
MATSUSHITA ELECTRIC WORKS LTD
发明人
TERASAWA AKIRA;TAKEYAMA HIROAKI;TANAKA TAKAKO;FUKUSHIMA MINORU
分类号
H04N7/18;H04B3/50;H04J3/00;H04M9/00;(IPC1-7):H04N7/18
主分类号
H04N7/18
代理机构
代理人
主权项
地址
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