发明名称 Device for longitudinally adjustably covering a duct
摘要 The invention relates to a device for covering a duct in a wall or floor of a building in a manner providing for variable adjustment in the height direction. This is achieved by the device consisting of a covering element and an intermediate element which can be connected to the duct and at an optional location in the height direction to the duct.
申请公布号 NL9200804(A) 申请公布日期 1993.12.01
申请号 NL19920000804 申请日期 1992.05.05
申请人 INFILL SYSTEMS B.V. TE DELFT. 发明人
分类号 H02G1/00;H02G3/04;(IPC1-7):H02G3/04 主分类号 H02G1/00
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