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发明名称
METHOD OF ADJUSTING LEVEL OF MANHOLE UPPER EDGE BY MEANS OF SPACING RINGS
摘要
申请公布号
PL240746(A2)
申请公布日期
1984.01.02
申请号
PL19830240746
申请日期
1983.02.22
申请人
MIEJSKIE PRZED ROBOT INZYNIERY
发明人
HAJTA MAREK;DROZDOWSKI PAWEL
分类号
E02D;(IPC1-7):E02D/
主分类号
E02D
代理机构
代理人
主权项
地址
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