Прибор для определения степени изнашиваемости покрова грунта,申请号SU19310093032-传众专利搜索

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发明名称	Прибор для определения степени изнашиваемости покрова грунта
摘要
申请公布号	SU27220(A1)	申请公布日期	1932.07.31
申请号	SU19310093032	申请日期	1931.08.14
申请人	PILYUGIN A.I.	发明人	PILYUGIN A.I.
分类号	G01N3/56;E02D1/00	主分类号	G01N3/56
代理机构		代理人
主权项
地址

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