Gate valve construction,申请号US19500202620-传众专利搜索

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发明名称	Gate valve construction
摘要
申请公布号	US2793002(A)	申请公布日期	1957.05.21
申请号	US19500202620	申请日期	1950.12.26
申请人	HENDEY MANUFACTURING CORPORATION	发明人	KELLAR GEORGE E.
分类号	F16K3/18	主分类号	F16K3/18
代理机构		代理人
主权项
地址

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