| 摘要 |
<p>PCT No. PCT/GB88/00107 Sec. 371 Date Oct. 11, 1989 Sec. 102(e) Date Oct. 11, 1989 PCT Filed Feb. 22, 1988 PCT Pub. No. WO88/06218 PCT Pub. Date Aug. 25, 1988.Device for mounting on the tread (1) of a step of a staircase which comprises a generally planar member adapted to be mounted upon or adjacent the leading edge of the horizontal portion (the tread) of a step of a staircase and extending rearwardly over part or all of the width of the step, which rearwardly extending portion of the member is provided with a strip (14) of photoluminescent material. The invention also provides a flooring grade sheet plastic containing a photoluminescent material suitable for use in the device of the invention.</p> |
