No load derrick for drilling rig,申请号AU19950039504-传众专利搜索

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发明名称	No load derrick for drilling rig
摘要
申请公布号	AU3950495(A)	申请公布日期	1996.05.02
申请号	AU19950039504	申请日期	1995.10.05
申请人	LAIBE SUPPLY CORPORATION	发明人	CARL F BACK
分类号	E21B7/02;E21B15/00;E21B19/086	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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