Pipe line construction and method of increasing flow therein,申请号US19620166379-传众专利搜索

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发明名称	Pipe line construction and method of increasing flow therein
摘要
申请公布号	US3220874(A)	申请公布日期	1965.11.30
申请号	US19620166379	申请日期	1962.01.15
申请人	THE MARATHON OIL COMPANY	发明人	POETTMANN FRED H.
分类号	F15D1/06	主分类号	F15D1/06
代理机构		代理人
主权项
地址

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