Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of FR424802ApublicationCriticalpatent/FR424802A/fr
Boulon-écrou indesserrable pour la fixation des rails de chemins de fer aux traverses métalliques, éclisses, coeurs d'embranchement, et pour toutes autres applications