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发明名称
Dispositif de verrouillage d'une trappe d'accès aux galeries et ouvrages souterrains du génie civil
摘要
申请公布号
OA9958(A)
申请公布日期
1995.12.11
申请号
OA19940060528
申请日期
1994.06.21
申请人
BARAT S A
发明人
AUDUC HENRI
分类号
E02D29/14;(IPC1-7):E06B5/01;E06B3/00
主分类号
E02D29/14
代理机构
代理人
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