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发明名称
ELECTRONIC BLACKBOARD
摘要
申请公布号
JPH01208077(A)
申请公布日期
1989.08.22
申请号
JP19880033124
申请日期
1988.02.16
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
SHIMIZU MASARU;TOMINO YASUNORI
分类号
B43L1/04;H04N1/00;H04N1/40;H04N1/403
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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