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发明名称
MANHOLE FOR CONTROLLING HEIGHT
摘要
申请公布号
KR820000082(Y1)
申请公布日期
1982.02.01
申请号
KR19810000227U
申请日期
1981.01.14
申请人
LEE J
发明人
LEE J
分类号
E02D29/14;(IPC1-7):E02D29/14
主分类号
E02D29/14
代理机构
代理人
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地址
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