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| Number | Title | Issue Date |
| 4657181 | Rail for a track bound vehicle A rail for a track-bound vehicle comprising a number of lateral flanges, which can cooperate with a substructure, the flanges extending in an outwards direction from an essentially vertically arranged web provided with a foot, and a portion of a runway ra... | 04/14/1987 |
| 4280657 | Concrete railroad track A concrete rail bed is provided with a pair of longitudinally extending laterally spaced rail-supporting pedestals with a connector between them, and each having a rail-receiving slot. The bed may be either precast or cast in place and may be reinforced a... | 07/28/1981 |
| 4141499 | Concrete railroad bed A cast concrete rail bed is provided which includes plural panels, each panel having a pair of longitudinally extending laterally spaced rail-supporting pedestals, with a connector between them, and each having a rail-receiving slot in its top. Each pedes... | 02/27/1979 |
| 4105160 | Rail joint bar for non-uniform rails A joint bar for joining a first rail having a head and a depending terminal web, and a second rail having a head, a depending web and a transverse flange; the joint bar has a first U-shaped portion with a lower bight and upstanding legs, and a second port... | 08/08/1978 |
