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发明名称
Pneumatic closure device for testing manholes with air pressure
摘要
申请公布号
EP0679879(B1)
申请公布日期
1998.08.19
申请号
EP19940400927
申请日期
1994.04.29
申请人
CHARLATTE
发明人
ROCHE, EMILE
分类号
E03F5/02;E03F7/00;E03F7/02;G01M3/02;(IPC1-7):G01M3/28
主分类号
E03F5/02
代理机构
代理人
主权项
地址
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