DOWN VELOCITY CONTROL APPARATUS FOR WATER GATE,申请号KR19970008297U-传众专利搜索

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发明名称	DOWN VELOCITY CONTROL APPARATUS FOR WATER GATE
摘要
申请公布号	KR200149847(Y1)	申请公布日期	1999.06.15
申请号	KR19970008297U	申请日期	1997.04.19
申请人	JANG, KYUNG-SIK	发明人	JANG, KYUNG-SIK
分类号	E02B7/20;(IPC1-7):E02B7/20	主分类号	E02B7/20
代理机构		代理人
主权项
地址

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