Manual and automatic valve,申请号US19500165284-传众专利搜索

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发明名称	Manual and automatic valve
摘要
申请公布号	US2658716(A)	申请公布日期	1953.11.10
申请号	US19500165284	申请日期	1950.05.31
申请人	WINFREE ROBERT N	发明人	WINFREE ROBERT N.
分类号	F16K23/00	主分类号	F16K23/00
代理机构		代理人
主权项
地址

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