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发明名称
WRITING BOARD AND WRITING BOARD WITH IMAGE
摘要
申请公布号
JPH0327990(A)
申请公布日期
1991.02.06
申请号
JP19890162540
申请日期
1989.06.27
申请人
DYNIC CORP
发明人
HANEDA AKIRA;OKADOKORO HIROSHI
分类号
B43L1/10;G09F7/00;G09F7/16
主分类号
B43L1/10
代理机构
代理人
主权项
地址
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