Piston-type boiler check valve,申请号US19290379357-传众专利搜索

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发明名称	Piston-type boiler check valve
摘要
申请公布号	US1776060(A)	申请公布日期	1930.09.16
申请号	US19290379357	申请日期	1929.07.19
申请人	CRANE CO.	发明人	BECKWITH CLINTON H.
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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