Railway journal lubricator,申请号US19310558719-传众专利搜索

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发明名称	Railway journal lubricator
摘要
申请公布号	US1961664(A)	申请公布日期	1934.06.05
申请号	US19310558719	申请日期	1931.08.22
申请人	HENNESSY JAMES J	发明人	HENNESSY JAMES J.
分类号	B61F17/24	主分类号	B61F17/24
代理机构		代理人
主权项
地址

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