Adjustable rotary jar,申请号US19340744167-传众专利搜索

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发明名称	Adjustable rotary jar
摘要
申请公布号	US2013127(A)	申请公布日期	1935.09.03
申请号	US19340744167	申请日期	1934.09.15
申请人	S. R. BOWEN CO.	发明人	BOWEN GEORGE WALTER
分类号	E21B31/107	主分类号	E21B31/107
代理机构		代理人
主权项
地址

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