Means for setting-up pit-props,申请号GB19540010802-传众专利搜索

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发明名称	Means for setting-up pit-props
摘要
申请公布号	GB776444(A)	申请公布日期	1957.06.05
申请号	GB19540010802	申请日期	1954.04.13
申请人	WILLY EGGEMANN;EBERHARD VON CAMPENHAUSEN	发明人	HEUSNER WILHELM
分类号	E21D15/58;E21D15/582	主分类号	E21D15/58
代理机构		代理人
主权项
地址

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