发明名称 REINFORCED-CONCRETE HATCH OF INSPECTION PIT
摘要 Reinforced-concrete hatch of inspection pit has body, cover and opening for measuring gassing. Body of hatch and cover are made of reinforced concrete (concrete different by type of binding substance and filling agent), at that the cover is equipped with device for lifting.
申请公布号 UA36653(U) 申请公布日期 2008.11.10
申请号 UA20070012880U 申请日期 2007.11.20
申请人 LAZAREV ANDRII MYKOLAIOVYCH 发明人 LAZAREV ANDRII MYKOLAIOVYCH
分类号 E02D29/14 主分类号 E02D29/14
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