Flow stopping apparatus for gas mains,申请号US19590804320-传众专利搜索

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发明名称	Flow stopping apparatus for gas mains
摘要
申请公布号	US3019819(A)	申请公布日期	1962.02.06
申请号	US19590804320	申请日期	1959.04.06
申请人	ANKARLO VICTOR E	发明人	ANKARLO VICTOR E.
分类号	F16L55/124	主分类号	F16L55/124
代理机构		代理人
主权项
地址

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