Spherical ball valve,申请号US19570680060-传众专利搜索

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发明名称	Spherical ball valve
摘要
申请公布号	US2885179(A)	申请公布日期	1959.05.05
申请号	US19570680060	申请日期	1957.08.26
申请人	WERNER HARTMANN	发明人	HARTMANN WERNER
分类号	F16K5/06	主分类号	F16K5/06
代理机构		代理人
主权项
地址

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