Pump rod stuffing box mounting,申请号US19310576765-传众专利搜索

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发明名称	Pump rod stuffing box mounting
摘要
申请公布号	US1902360(A)	申请公布日期	1933.03.21
申请号	US19310576765	申请日期	1931.11.23
申请人	FOSTER WALTER W	发明人	FOSTER WALTER W.
分类号	E21B33/08;F16J15/18	主分类号	E21B33/08
代理机构		代理人
主权项
地址

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