AN IMPROVED COUPLING.,申请号AU19700019701-传众专利搜索

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发明名称	AN IMPROVED COUPLING.
摘要
申请公布号	AU1970170(A)	申请公布日期	1972.03.16
申请号	AU19700019701	申请日期	1970.09.09
申请人	DOVER CORPORATION	发明人	ROBERT AUSTIN MORRIS
分类号	E21B;(IPC1-7):E21B	主分类号	E21B
代理机构		代理人
主权项
地址

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