Part first is an illustrated description of the switch arrangements of this system. (Serial)
The thomas pneumatic system of handling railway switches and signals
Ry Rev
1897
Article (Journal)
English
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Pneumatic system of handling switches and signals
Engineering Index Backfile | 1896
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Improvements in railway switches
SAGE Publications | 2002
|Improvements in railway switches
Online Contents | 2002
|Improvements in railway switches
British Library Online Contents | 2002
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