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发明名称
EDUCATIONAL APPLIANCE FOR DEMONSTRATING WAVES
摘要
申请公布号
SU911595(A1)
申请公布日期
1982.03.07
申请号
SU19802958983
申请日期
1980.07.14
申请人
IVANOVA VALENTINA,SU;MISHATKIN MIKHAIL A,SU;POPOV ALEKSANDR P,SU
发明人
IVANOVA VALENTINA I,SU;MISHATKIN MIKHAIL A,SU;POPOV ALEKSANDR P,SU
分类号
G09B23/06;(IPC1-7):G09B23/06
主分类号
G09B23/06
代理机构
代理人
主权项
地址
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