Spiral packed working barrel valve body,申请号US19360099297-传众专利搜索

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发明名称	Spiral packed working barrel valve body
摘要
申请公布号	US2099691(A)	申请公布日期	1937.11.23
申请号	US19360099297	申请日期	1936.09.03
申请人	HUNTER WILLIAM H	发明人	HUNTER WILLIAM H.
分类号	F04B53/14	主分类号	F04B53/14
代理机构		代理人
主权项
地址

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