Прибор для наглядного объяснения законов перспективы,申请号SU19280031300-传众专利搜索

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发明名称	Прибор для наглядного объяснения законов перспективы
摘要
申请公布号	SU16459(A1)	申请公布日期	1930.08.31
申请号	SU19280031300	申请日期	1928.08.13
申请人	RYABININ M.G.	发明人	RYABININ M.G.
分类号	G09B23/04	主分类号	G09B23/04
代理机构		代理人
主权项
地址

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