| 摘要 |
<p>553,277. Road markings. LORD, E. Nov. 10, 1941, No. 14463. [Class 3 (ii)] A rubber &c. or metal block or strip 1 for marking roads, stairs &c. is shaped in cross-section as shown in Fig. 1. The end walls 2 have inner and outer flanges 2b, 2a at the base ,and the inner walls 4 splay outward or have projecting ribs on each side. The channels between the walls form part of a circle in longitudinal section, the roof meeting the base at each end. Vent holes may be provided in the roof.</p> |
