Self-aligning stuffing box and bearing,申请号US19330681899-传众专利搜索

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发明名称	Self-aligning stuffing box and bearing
摘要
申请公布号	US1977020(A)	申请公布日期	1934.10.16
申请号	US19330681899	申请日期	1933.07.24
申请人	THE NATIONAL SUPERIOR COMPANY	发明人	SPALDING JOHN D.
分类号	F16L27/08	主分类号	F16L27/08
代理机构		代理人
主权项
地址

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