| 摘要 |
<p>311,767. Rand, W. M. May 10, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 17, 1929]. Surface markings.-Relates to traffic signs having a normally up-standing member adapted to be depressed and run over by vehicle wheels, and consists in a flexible flap 10 having legs 13, 14, secured by screws to the roadway. The device may rest on a metallic base-plate 18 or be moulded with an integral base.</p> |
