HEIGHT ADJUSTABLE DEVICE FOR MANHOLE,申请号KR19920023729U-传众专利搜索

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发明名称	HEIGHT ADJUSTABLE DEVICE FOR MANHOLE
摘要
申请公布号	KR970004434(Y1)	申请公布日期	1997.05.09
申请号	KR19920023729U	申请日期	1992.11.27
申请人	LEE, SANG-HOON	发明人	LEE, SANG-HOON
分类号	E02D29/12;(IPC1-7):E02D29/12	主分类号	E02D29/12
代理机构		代理人
主权项
地址

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