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发明名称
ENGLISH TEACHING MATERIAL APPLIANCE
摘要
申请公布号
JPH04216586(A)
申请公布日期
1992.08.06
申请号
JP19900410891
申请日期
1990.12.15
申请人
SHINEIKEN:YUUGEN
发明人
TACHINO AKIRA
分类号
G09B5/06;G10L13/00
主分类号
G09B5/06
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