Рабочий орган машины для выемки угля,申请号SU19500412764-传众专利搜索

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法人/股东/高管

发明名称	Рабочий орган машины для выемки угля
摘要
申请公布号	SU86956(A2)	申请公布日期	1951.11.30
申请号	SU19500412764	申请日期	1950.02.22
申请人	PICHUGIN A.A.	发明人	PICHUGIN A.A.
分类号	E21C27/22;E21C25/04	主分类号	E21C27/22
代理机构		代理人
主权项
地址

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