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发明名称
TELEVISION DOORPHONE DEVICE WITH PICTURE MEMORY
摘要
申请公布号
JPH04273690(A)
申请公布日期
1992.09.29
申请号
JP19910034700
申请日期
1991.02.28
申请人
AIPHONE CO LTD
发明人
ISHIKAWA KATSUKI
分类号
H04M9/00;H04M11/00;H04N5/91;H04N5/915;H04N7/18
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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