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| Number | Title | Issue Date |
| 4890804 | Turnout unit for railway track Disclosed is an improved turnout unit to be employed in turnout point of railway tracks, which does not necessitate maintenance of the sliding surface of the base plate. In the turnout unit of the present invention, a spray-coated ceramic layer is formed ... | 01/02/1990 |
| 4210300 | Point switch This invention relates to an improvement in a point switch in which the switch blades or tongues are composed of rail sections of the trunk or main track and are displaceably positioned on slide chairs in the transverse rail direction, the improvement com... | 07/01/1980 |
| 4105175 | Railway switching points The invention relates to a device for a switching point of a railway track, said switching point comprising two movable tongue-rails controlled in such a manner that their ends may be brought in contact with line-rails, or be separated therefrom, by a sli... | 08/08/1978 |
