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发明名称	Valve
摘要
申请公布号	US2074746(A)	申请公布日期	1937.03.23
申请号	US19340724080	申请日期	1934.05.05
申请人	THE WESTINGHOUSE AIR BRAKE COMPANY	发明人	HEWITT ELLIS E.
分类号	F16K1/46	主分类号	F16K1/46
代理机构		代理人
主权项
地址

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