Горный комбайн для проходки выработок по мягким породам,申请号SUD55979-传众专利搜索

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发明名称	Горный комбайн для проходки выработок по мягким породам
摘要
申请公布号	SU55979(A1)	申请公布日期	1938.11.30
申请号	SUD55979	申请日期	1938.10.07
申请人	PROKOPEV E.P.	发明人	PROKOPEV E.P.
分类号	E21D9/04;E21C27/01;E21D1/04	主分类号	E21D9/04
代理机构		代理人
主权项
地址

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