Трубчатая телескопическая рудничная стойка,申请号SU19470352383-传众专利搜索

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发明名称	Трубчатая телескопическая рудничная стойка
摘要
申请公布号	SU73119(A1)	申请公布日期	1947.11.30
申请号	SU19470352383	申请日期	1947.03.05
申请人	ARKUSHENKO A.A.	发明人	ARKUSHENKO A.A.
分类号	E21D15/20	主分类号	E21D15/20
代理机构		代理人
主权项
地址

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