Hydraulic pit prop,申请号GB19580030086-传众专利搜索

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发明名称	Hydraulic pit prop
摘要
申请公布号	GB900711(A)	申请公布日期	1962.07.11
申请号	GB19580030086	申请日期	1958.09.19
申请人	MARGOT VON LINSINGEN	发明人
分类号	B66F3/42;E21D15/45	主分类号	B66F3/42
代理机构		代理人
主权项
地址

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