VALVE SEAT DEVICE FOR BUTTERFLY VALVE,申请号JP19770037978-传众专利搜索

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发明名称	VALVE SEAT DEVICE FOR BUTTERFLY VALVE
摘要
申请公布号	JPS53122930(A)	申请公布日期	1978.10.26
申请号	JP19770037978	申请日期	1977.04.01
申请人	KUBOTA LTD	发明人	OOTA KAZUNARI;YAMAZAKI KAZUHIRO
分类号	F16K1/226	主分类号	F16K1/226
代理机构		代理人
主权项
地址

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