Describes device recording motion of railroad cars and other vehicles, made by Elliot Bros., London.
An automatic recorder of vehicular motion
Indicateur automatique du mouvement des vehicules
Electricien ; 52 , n 1282
1921
4 pages
4 Figs.
Aufsatz (Zeitschrift)
Französisch
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Automatic Data Recorder for Vehicular Operations
NTIS | 1970
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