Improvements in or relating to hydraulic props and jacks, especially pit props,申请号GB19510001998-传众专利搜索

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发明名称	Improvements in or relating to hydraulic props and jacks, especially pit props
摘要
申请公布号	GB706982(A)	申请公布日期	1954.04.07
申请号	GB19510001998	申请日期	1951.01.26
申请人	RICHARD GEORGE CABLE	发明人
分类号	E21D15/51;E21D15/54	主分类号	E21D15/51
代理机构		代理人
主权项
地址

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