Quick opening check valve assembly,申请号US19430485232-传众专利搜索

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发明名称	Quick opening check valve assembly
摘要
申请公布号	US2431769(A)	申请公布日期	1947.12.02
申请号	US19430485232	申请日期	1943.04.30
申请人	THE PARKER APPLIANCE COMPANY	发明人	PARKER ARTHUR L.
分类号	F16K15/02	主分类号	F16K15/02
代理机构		代理人
主权项
地址

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