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发明名称
ACCESS COVERS FOR MANHOLES
摘要
申请公布号
AU562904(B2)
申请公布日期
1987.06.18
申请号
AU19840032158
申请日期
1984.08.13
申请人
CENTA,A.R.
发明人
CENTA,A.R.
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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