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发明名称
ATTACHMENT FOR TEACHING CORRECT MANIPULATION OF FIDDLE STICK OF MUSICAL INSTRUMENT
摘要
申请公布号
SU1583955(A1)
申请公布日期
1990.08.07
申请号
SU19884421210
申请日期
1988.05.04
申请人
TROYANOVSKIJ MIKHAIL,SU
发明人
TROYANOVSKIJ MIKHAIL I,SU
分类号
G09B15/06
主分类号
G09B15/06
代理机构
代理人
主权项
地址
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