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经营范围
发明名称
ELECTRONIC BLACKBOARD APPARATUS
摘要
申请公布号
JPH04164697(A)
申请公布日期
1992.06.10
申请号
JP19900292300
申请日期
1990.10.29
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
YAMASHITA ATSUSHI;NAKAYAMA TAKESHI
分类号
B43L1/04;H04N1/00
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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