Способ определения суммарного горного и гидростатического давления на крепь вертикального ствола,申请号SU19590616155-传众专利搜索

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发明名称	Способ определения суммарного горного и гидростатического давления на крепь вертикального ствола
摘要
申请公布号	SU123114(A1)	申请公布日期	1959.11.30
申请号	SU19590616155	申请日期	1959.01.09
申请人	GEJ B.YA.	发明人	GEJ B.YA.
分类号	E21D1/00	主分类号	E21D1/00
代理机构		代理人
主权项
地址

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