TAR SANDS CONVEYOR BELT OPERATION,申请号CA19690054431-传众专利搜索

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发明名称	TAR SANDS CONVEYOR BELT OPERATION
摘要
申请公布号	CA922655(A)	申请公布日期	1973.03.13
申请号	CA19690054431	申请日期	1969.06.16
申请人	GREAT CANADIAN OIL SANDS LTD	发明人	HOGG W
分类号	E02F7/00;E21C41/24	主分类号	E02F7/00
代理机构		代理人
主权项
地址

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