A HEIGHT ADJUSTABLE MANHOLE STRUCTURE,申请号KR19970016104-传众专利搜索

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发明名称	A HEIGHT ADJUSTABLE MANHOLE STRUCTURE
摘要
申请公布号	KR100204981(B1)	申请公布日期	1999.06.15
申请号	KR19970016104	申请日期	1997.04.21
申请人	YU, BYUNG-GIL	发明人	YU, BYUNG-GIL
分类号	E02D29/14;(IPC1-7):E02D29/14	主分类号	E02D29/14
代理机构		代理人
主权项
地址

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