| 摘要 |
1516818 Lamp supports ARMSTRONG CORK CO 25 April 1977 [23 April 1976] 17193/77 Heading F4R A suspended ceiling system comprises a plurality of runners forming a grid, ceiling boards supported by the grid, at least two track members supported by the grid, and a lighting fitting suspended by at least two support posts, the upper end of each post being slidable in a respective track member and the lower end being connected, preferably slidably, to the fitting. The track members may be parallel or perpendicular to one another and may carry electric power to the fitting. |
