MASKING TYPE CORRECT ANSWER CARD,申请号JP19780100733-传众专利搜索

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发明名称	MASKING TYPE CORRECT ANSWER CARD
摘要
申请公布号	JPS5527264(A)	申请公布日期	1980.02.27
申请号	JP19780100733	申请日期	1978.08.18
申请人	GAKKEN CO LTD	发明人	TAKEDA HIROYUKI;OOMORI KUNIO
分类号	G09B3/02;B42D15/00;G09B3/04;G09B3/10	主分类号	G09B3/02
代理机构		代理人
主权项
地址

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