VALVE OPENING AND CLOSING DEVICE,申请号JP19900007559-传众专利搜索

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发明名称	VALVE OPENING AND CLOSING DEVICE
摘要
申请公布号	JPH03129189(A)	申请公布日期	1991.06.03
申请号	JP19900007559	申请日期	1990.01.16
申请人	HITACHI METALS LTD	发明人	TOKU TAKASHI;KAZAMA YOICHIRO
分类号	F16K31/04	主分类号	F16K31/04
代理机构		代理人
主权项
地址

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