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经营范围
发明名称
ELECTRONIC BLACKBOARD
摘要
申请公布号
JPS62111796(A)
申请公布日期
1987.05.22
申请号
JP19850251786
申请日期
1985.11.09
申请人
TOKYO ELECTRIC CO LTD
发明人
KIKUCHI SHIGEO;SUZUKI ISOO
分类号
B43L1/04
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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