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发明名称
System und Verfahren zum Lernen der Zeichensprache
摘要
申请公布号
DE69325620(D1)
申请公布日期
1999.08.19
申请号
DE1993625620
申请日期
1993.09.03
申请人
HITACHI
发明人
MASAHIRO, ABE;SAKOU, HIROSHI;SAGAWA, HIROHIKO;ICHIKAWA, AKIRA;INOUE, KIYOSHI;SHIMURA, TAKANORI;TODA, YUJI;ARAI, KIYOSHI
分类号
G09B7/02;G06Q50/00;G06Q50/10;G06Q50/20;G09B21/00;(IPC1-7):G09B21/00
主分类号
G09B7/02
代理机构
代理人
主权项
地址
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