Снаряд для разработки мерзлых грунтов,申请号SU19500438057-传众专利搜索

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发明名称	Снаряд для разработки мерзлых грунтов
摘要
申请公布号	SU92578(A1)	申请公布日期	1950.11.30
申请号	SU19500438057	申请日期	1950.11.09
申请人	PROTASOV K.G.	发明人	PROTASOV K.G.
分类号	E02F5/30;E01C11/20;E02D7/18	主分类号	E02F5/30
代理机构		代理人
主权项
地址

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