Эргограф типа Дюбуа,申请号SU19290063798-传众专利搜索

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发明名称	Эргограф типа Дюбуа
摘要
申请公布号	SU25677(A1)	申请公布日期	1932.03.31
申请号	SU19290063798	申请日期	1929.05.12
申请人	LEVCHENKO V.V.	发明人	LEVCHENKO V.V.
分类号		主分类号
代理机构		代理人
主权项
地址

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