Thread cleaning tool with ejector pin for valve housings,申请号US19520298743-传众专利搜索

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发明名称	Thread cleaning tool with ejector pin for valve housings
摘要
申请公布号	US2689356(A)	申请公布日期	1954.09.21
申请号	US19520298743	申请日期	1952.07.14
申请人	HERBERT STAFFORD ARTHUR	发明人	STAFFORD ARTHUR HERBERT
分类号	B25B27/30	主分类号	B25B27/30
代理机构		代理人
主权项
地址

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