Reversible check valve and cut-off,申请号US19280247341-传众专利搜索

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发明名称	Reversible check valve and cut-off
摘要
申请公布号	US1827470(A)	申请公布日期	1931.10.13
申请号	US19280247341	申请日期	1928.01.17
申请人	HARRISON CHARLES D;LINDSEY PARREN D	发明人	HARRISON CHARLES D.;LINDSEY PARREN D.
分类号	F16K15/18	主分类号	F16K15/18
代理机构		代理人
主权项
地址

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