Valve shutoff device,申请号US19440522169-传众专利搜索

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发明名称	Valve shutoff device
摘要
申请公布号	US2354366(A)	申请公布日期	1944.07.25
申请号	US19440522169	申请日期	1944.02.12
申请人	FISHER JOHN G	发明人	FISHER JOHN G.
分类号	F16K21/06	主分类号	F16K21/06
代理机构		代理人
主权项
地址

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