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经营范围
发明名称
DIDACTISCH CONSTRUKTIESAMENSTEL.
摘要
申请公布号
NL171389(C)
申请公布日期
1983.03.16
申请号
NL19700010189
申请日期
1970.07.09
申请人
PHILOGRAPH PUBLICATIONS LIMITED TE LONDEN.
发明人
分类号
A63H33/08;A63H33/10;G09B23/02;(IPC1-7):G09B1/36
主分类号
A63H33/08
代理机构
代理人
主权项
地址
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