Automatic unloading check valve,申请号US19310554171-传众专利搜索

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发明名称	Automatic unloading check valve
摘要
申请公布号	US1902231(A)	申请公布日期	1933.03.21
申请号	US19310554171	申请日期	1931.07.31
申请人	THE DAYTON AIR COMPRESSOR COMPANY	发明人	GURLEY JOHN W.
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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