Improvements in roof and similar supports for use in mines and other places,申请号GB19530004551-传众专利搜索

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发明名称	Improvements in roof and similar supports for use in mines and other places
摘要
申请公布号	GB746762(A)	申请公布日期	1956.03.21
申请号	GB19530004551	申请日期	1953.02.18
申请人	HILL PORTER (NEWCASTLE) LIMITED;ALLEN CLIFFORD TALBOTT	发明人
分类号	E21D15/26	主分类号	E21D15/26
代理机构		代理人
主权项
地址

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