Fluid-pressure-operated prop,申请号GB19650035215-传众专利搜索

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发明名称	Fluid-pressure-operated prop
摘要
申请公布号	GB1093778(A)	申请公布日期	1967.12.06
申请号	GB19650035215	申请日期	1965.08.17
申请人	DOWTY MINING EQUIPMENT LIMITED	发明人	LAMPL FRIEDRICH
分类号	E21D15/44	主分类号	E21D15/44
代理机构		代理人
主权项
地址

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