Способ изготовления нёбной пластинки для улучшения звукообразования при пении,申请号SU19520446257-传众专利搜索

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发明名称	Способ изготовления нёбной пластинки для улучшения звукообразования при пении
摘要
申请公布号	SU96426(A1)	申请公布日期	1952.11.30
申请号	SU19520446257	申请日期	1952.01.28
申请人	YAMSHTEKIN S.D.	发明人	YAMSHTEKIN S.D.
分类号	A61C13/20	主分类号	A61C13/20
代理机构		代理人
主权项
地址

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