Металлическая передвижная крепь,申请号SU19370211192-传众专利搜索

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发明名称	Металлическая передвижная крепь
摘要
申请公布号	SU112423(A1)	申请公布日期	1957.11.30
申请号	SU19370211192	申请日期	1937.04.15
申请人	MALAJ A.D.	发明人	MALAJ A.D.
分类号	E21D23/04;E21D23/08	主分类号	E21D23/04
代理机构		代理人
主权项
地址

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