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发明名称
ARRANGEMENT FOR THE DEMONSTRATION OF THE PERIODIC SYSTEM OF ELEMENTS OF D.I. MENDELEEV
摘要
申请公布号
SU694887(A1)
申请公布日期
1979.10.30
申请号
SU19762418015
申请日期
1976.11.04
申请人
BAEV VIKTOR K,SU
发明人
BAEV VIKTOR K,SU
分类号
G09B23/20;(IPC1-7):G09B23/20
主分类号
G09B23/20
代理机构
代理人
主权项
地址
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