POWER PIPE TONG TRANSMISSION ASSEMBLY,申请号USD3516308-传众专利搜索

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发明名称	POWER PIPE TONG TRANSMISSION ASSEMBLY
摘要
申请公布号	US3516308(A)	申请公布日期	1970.06.23
申请号	USD3516308	申请日期	1967.12.04
申请人	BYRON JACKSON INC.	发明人	JOHN E. HAM;MERRILL K. WILLSEY
分类号	E21B19/16;(IPC1-7):B25B17/00	主分类号	E21B19/16
代理机构		代理人
主权项
地址

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