Sphere valve with a double gasket especially for low-pressure gas,申请号IT19890022509-传众专利搜索

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发明名称	Sphere valve with a double gasket especially for low-pressure gas
摘要
申请公布号	IT1237843(B)	申请公布日期	1993.06.18
申请号	IT19890022509	申请日期	1989.11.24
申请人	NEGRI GUIDO	发明人	NEGRI GUIDO
分类号	F16K;(IPC1-7):F16K	主分类号	F16K
代理机构		代理人
主权项
地址

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