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发明名称
Inkless Blackboard Display Panels
摘要
申请公布号
CA2138699(A1)
申请公布日期
1996.06.22
申请号
CA19942138699
申请日期
1994.12.21
申请人
HOM, SEE M.
发明人
HOM, SEE M.
分类号
B43L1/00;G09B5/02;G09F9/30;(IPC1-7):B43L1/00
主分类号
B43L1/00
代理机构
代理人
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