Pressure-vacuum control valve,申请号US19480022013-传众专利搜索

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发明名称	Pressure-vacuum control valve
摘要
申请公布号	US2587943(A)	申请公布日期	1952.03.04
申请号	US19480022013	申请日期	1948.04.19
申请人	WIGGINS JOHN H	发明人	WIGGINS JOHN H.
分类号	F16K17/19	主分类号	F16K17/19
代理机构		代理人
主权项
地址

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