COUPLING,申请号USD3534984-传众专利搜索

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发明名称	COUPLING
摘要
申请公布号	US3534984(A)	申请公布日期	1970.10.20
申请号	USD3534984	申请日期	1968.04.01
申请人	ROBERT A. SHUEY	发明人	ROBERT A. SHUEY
分类号	E21B33/038;F16L37/00;(IPC1-7):F16L35/00;F16L39/00	主分类号	E21B33/038
代理机构		代理人
主权项
地址

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