Coupling joint for lagging irons used in mining operations,申请号GB19510018873-传众专利搜索

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发明名称	Coupling joint for lagging irons used in mining operations
摘要
申请公布号	GB706796(A)	申请公布日期	1954.04.07
申请号	GB19510018873	申请日期	1951.08.10
申请人	JOSEF BRAND;CAMPBELL RITCHIE	发明人
分类号	E21D17/086	主分类号	E21D17/086
代理机构		代理人
主权项
地址

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