Improvements relating to devices for releasing two relatively movable parts of pit-props and the like supporting devices,申请号GB19580025734-传众专利搜索

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发明名称	Improvements relating to devices for releasing two relatively movable parts of pit-props and the like supporting devices
摘要
申请公布号	GB893192(A)	申请公布日期	1962.04.04
申请号	GB19580025734	申请日期	1958.08.11
申请人	GUTEHOFFNUNGSHUETTE STERKRADE AKTIENGESELLSCHAFT	发明人
分类号	E21D15/60	主分类号	E21D15/60
代理机构		代理人
主权项
地址

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