| 摘要 |
500,688. Collapsable gates. POTTER RAX GATE CO., Ltd., and RAXWORTHY, R. E. May 2, 1938, No. 13006. , [Class 45] Plates B, mounted on the uprights E of collapsable gates, shutters, &c., are provided with non-metallic composition rubbing strips C extending the whole length of the overlapping edges of the plates, and adapted to bear on the surfaces of the adjacent plates. Hooks A, at the top and bottom of each plate, maintain contact. Specifications 410,710, 429,532, and 447,696, and U.S.A. Specification 1,721,998 are referred to. |
