DRILL PIPE HANDLING MECHANISM,申请号AU19780034451-传众专利搜索

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发明名称	DRILL PIPE HANDLING MECHANISM
摘要
申请公布号	AU3445178(A)	申请公布日期	1979.09.27
申请号	AU19780034451	申请日期	1978.03.23
申请人	GARDNER-DENVER CO.	发明人	RAY M. MITCHHART;HANS ZINGL
分类号	E21B19/20	主分类号	E21B19/20
代理机构		代理人
主权项
地址

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