Improvements in withdrawing appliances for trench props and the like,申请号GB19300034251-传众专利搜索

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发明名称	Improvements in withdrawing appliances for trench props and the like
摘要
申请公布号	GB366616(A)	申请公布日期	1932.02.11
申请号	GB19300034251	申请日期	1930.11.14
申请人	GEORGE MINNS MALPAS;WILLIAM GODFREY WAITE	发明人
分类号	E02D9/02	主分类号	E02D9/02
代理机构		代理人
主权项
地址

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