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发明名称
ADJUSTABLY LEVELLING MANHOLE COVER GRATES &C
摘要
申请公布号
GB8507044(D0)
申请公布日期
1985.04.24
申请号
GB19850007044
申请日期
1985.03.19
申请人
LEBARON FOUNDRY CO
发明人
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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