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V Bietrix Et Cie
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V Bietrix Et Cie
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Priority to ES3499ApriorityCriticalpatent/ES3499A1/en
Publication of ES3499A1publicationCriticalpatent/ES3499A1/en
A mechanical procedure to effect the traction of locomotives and wagons by means of a single toothed bar embedded in the center of the track, street or road and in whose central bar the driving wheels of the vehicles engage.