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发明名称
小学生学模板
摘要
1.图中细线均为刻线,阴影部分为模孔。2.省略其它视图。3.模板使用较薄且不易变形之透明或半透明材料制作。
申请公布号
CN3010785S
申请公布日期
1991.10.02
申请号
CN91300683.1
申请日期
1991.03.25
申请人
沈钧昌
发明人
沈钧昌; 徐美娟; 张家英; 沈永庆
分类号
19-06-S0669
主分类号
19-06-S0669
代理机构
代理人
主权项
地址
246002安徽省安庆市安庆电力建设技术学校
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