| 摘要 |
1,214,161. Uses of luminescence. HELSING- BORGS GUMMIFABRIKS A.B. TRETORN. 29 Dec., 1967 [23 Jan., 1967], No. 59078/67. Heading C4S. [Also in Division E1] A hollow plastics roadside marker post incorporating or painted with luminescent material comprises a flexible blade 1 of hollow rectangular cross-section integral with a thicker ground-inserted portion 2 of circular crosssection. The portion 2 has ground-anchoring formations 4, 5, while the blade 1 has weakening grooves 6 to allow bending on impact. |
