发明名称 Memorizing aid
摘要 A memorizing aid convenient to memorize foreign words includes an endless tape passing around two rolls and intermittently rotated by pressing a pushbutton. The tape bears information to be memorized, the information being seen through a pair of windows formed in a casing.
申请公布号 US4143473(A) 申请公布日期 1979.03.13
申请号 US19770818930 申请日期 1977.07.25
申请人 SAKURA COLOR PRODUCTS CORPORATION 发明人 MITSUYA, YOSHIHIDE
分类号 B42D19/00;G09B1/24;G09B3/06;(IPC1-7):G09B1/24 主分类号 B42D19/00
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