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发明名称
ELECTRONIC BLACKBOARD DEVICE
摘要
申请公布号
JPH08336005(A)
申请公布日期
1996.12.17
申请号
JP19960174376
申请日期
1996.06.14
申请人
RICOH CO LTD
发明人
SATAKE GISAN
分类号
B43L1/04;H04N1/00;(IPC1-7):H04N1/00
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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