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经营范围
发明名称
TELETEXT RECEIVER
摘要
申请公布号
JPH03214983(A)
申请公布日期
1991.09.20
申请号
JP19900011183
申请日期
1990.01.19
申请人
RICOH CO LTD
发明人
YAMAZAKI NOBUHIDE;KITAGAWA HIROO;SAKAYORI TETSUYA;KOMATSU JUNKO;KOJIMA YUICHI
分类号
H04N7/025;G10L13/00;H04N7/03;H04N7/035;H04N7/08
主分类号
H04N7/025
代理机构
代理人
主权项
地址
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