Rotary table bushing,申请号US19280287026-传众专利搜索

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发明名称	Rotary table bushing
摘要
申请公布号	US1839780(A)	申请公布日期	1932.01.05
申请号	US19280287026	申请日期	1928.06.20
申请人	VOCK WILLIAM A;BOSWELL FOX M	发明人	VOCK WILLIAM A.;BOSWELL FOX M.
分类号	E21B3/04	主分类号	E21B3/04
代理机构		代理人
主权项
地址

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