Improvements in or relating to metal props for mines and the like,申请号GB19480028159-传众专利搜索

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发明名称	Improvements in or relating to metal props for mines and the like
摘要
申请公布号	GB680616(A)	申请公布日期	1952.10.08
申请号	GB19480028159	申请日期	1948.10.29
申请人	GILLES SMAL	发明人
分类号	E21D15/28	主分类号	E21D15/28
代理机构		代理人
主权项
地址

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