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发明名称
初中化学反应与规律速学活动盘
摘要
1.省略其它视图。2.盘心有轴,盘心至第三环为小盘,小盘压在大盘上,大、小盘可相对转动。
申请公布号
CN3041267D
申请公布日期
1996.02.21
申请号
CN95303225.6
申请日期
1995.04.09
申请人
虞继贵
发明人
虞继贵; 虞永久
分类号
19-07
主分类号
19-07
代理机构
代理人
主权项
地址
464238河南省罗山县楠杆第一中学
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