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发明名称
VISUAL TELEPHONE SYSTEM
摘要
申请公布号
JPH03104487(A)
申请公布日期
1991.05.01
申请号
JP19890240791
申请日期
1989.09.19
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
MASAMITSU MINEO;SUZUKI HAJIME;KIMURA YOSHIMASA;KISHIMOTO TOMIO;TONOMURA YOSHINOBU;ABE SHINJI
分类号
H04N7/14
主分类号
H04N7/14
代理机构
代理人
主权项
地址
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