Improvements in or relating to hydraulic pit props comprising three or more telescopic parts,申请号GB19600020254-传众专利搜索

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发明名称	Improvements in or relating to hydraulic pit props comprising three or more telescopic parts
摘要
申请公布号	GB947397(A)	申请公布日期	1964.01.22
申请号	GB19600020254	申请日期	1960.06.09
申请人	GUTEHOFFNUNGSHUETTE STERKRADE AKTIENGESELLSCHAFT	发明人
分类号	E21D15/51	主分类号	E21D15/51
代理机构		代理人
主权项
地址

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