Check valve,申请号US19510242283-传众专利搜索

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法人/股东/高管

发明名称	Check valve
摘要
申请公布号	US2722232(A)	申请公布日期	1955.11.01
申请号	US19510242283	申请日期	1951.08.17
申请人	HOFFMAN SPECIALTY MFG. CORP.	发明人	JR. AUSTIN O. ROCHE,
分类号	F16K15/06	主分类号	F16K15/06
代理机构		代理人
主权项
地址

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