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经营范围
发明名称
DOORPHONE SYSTEM
摘要
申请公布号
JPH09200736(A)
申请公布日期
1997.07.31
申请号
JP19960004300
申请日期
1996.01.12
申请人
MATSUSHITA ELECTRIC WORKS LTD
发明人
SAKAMOTO HIDEO;TAKAHASHI SEI;FURUYA TOMOHIDE;TANIGAWA YOSHIHIRO
分类号
H04N7/18;H04M9/00;H04M11/00;(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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