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发明名称
DOORPHONE DEVICE
摘要
申请公布号
JPH08263777(A)
申请公布日期
1996.10.11
申请号
JP19950063741
申请日期
1995.03.23
申请人
MATSUSHITA ELECTRIC WORKS LTD
发明人
TAKAHASHI SEI;SAKAMOTO HIDEO;FURUYA TOMOHIDE;TANIGAWA YOSHIHIRO
分类号
H04N7/18;G08B25/04;H04M9/00;(IPC1-7):G08B25/04
主分类号
H04N7/18
代理机构
代理人
主权项
地址
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