| 摘要 |
1535605 Wheel chocks SUBURBAN METAL INDUSTRIES Ltd 28 June 1976 26862/76 Heading F2E A wheel chock is made from a body of resiliently flexible material, e.g. rubber, with one or more through apertures 5. It has a tapered portion which will be trapped by the wheel to immobilize the chock, a generally concave portion 3 and a generally convex portion 4. Serrations 2, 4 are provided on the ground engaging surface and the top of the tapered portion respectively. |
