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发明名称
VIDEO DOORPHONE DEVICE
摘要
申请公布号
JPH02202288(A)
申请公布日期
1990.08.10
申请号
JP19890022100
申请日期
1989.01.31
申请人
AIPHONE CO LTD
发明人
SUZUKI TOYOJI
分类号
H04N5/38;H04M9/00;H04N7/18
主分类号
H04N5/38
代理机构
代理人
主权项
地址
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