Excess flow valve,申请号US19520314614-传众专利搜索

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发明名称	Excess flow valve
摘要
申请公布号	US2749937(A)	申请公布日期	1956.06.12
申请号	US19520314614	申请日期	1952.10.14
申请人	OTIS ENGINEERING CORPORATION	发明人	SCHRAMM HARRY B.;FREDD JOHN V.;SR. HERBERT C. OTIS,
分类号	F16K17/30	主分类号	F16K17/30
代理机构		代理人
主权项
地址

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