Устройство для разработки слабо связанных грунтов,申请号SU19550455665-传众专利搜索

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发明名称	Устройство для разработки слабо связанных грунтов
摘要
申请公布号	SU109609(A1)	申请公布日期	1956.11.30
申请号	SU19550455665	申请日期	1955.02.01
申请人	DAVIDYANTS G.P.	发明人	DAVIDYANTS G.P.
分类号	E02F3/88;E21C45/00	主分类号	E02F3/88
代理机构		代理人
主权项
地址

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