Устройство для спуска длинномерного лесоматериала в шахту по вертикальным стволам,申请号SU19480388336-传众专利搜索

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发明名称	Устройство для спуска длинномерного лесоматериала в шахту по вертикальным стволам
摘要
申请公布号	SU79138(A1)	申请公布日期	1948.11.30
申请号	SU19480388336	申请日期	1948.11.29
申请人	ZENIN P.A.	发明人	ZENIN P.A.
分类号	E21F17/00;E21D13/04	主分类号	E21F17/00
代理机构		代理人
主权项
地址

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