TELESCOPIC TUBULAR PIT PROPS,申请号CAD629273-传众专利搜索

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发明名称	TELESCOPIC TUBULAR PIT PROPS
摘要
申请公布号	CA629273(A)	申请公布日期	1961.10.17
申请号	CAD629273	申请日期
申请人	DOWTY MINING EQUIPMENT LIMITED	发明人	COLIN M. FRYE
分类号		主分类号
代理机构		代理人
主权项
地址

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