Braden head and pipe hanger,申请号US19380212876-传众专利搜索

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发明名称	Braden head and pipe hanger
摘要
申请公布号	US2194265(A)	申请公布日期	1940.03.19
申请号	US19380212876	申请日期	1938.06.10
申请人	ABERCROMBIE JAMES S	发明人	ABERCROMBIE JAMES S.
分类号	E21B33/04;E21B43/10	主分类号	E21B33/04
代理机构		代理人
主权项
地址

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