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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Application filed by IndividualfiledCriticalIndividual
Priority to ES215407ApriorityCriticalpatent/ES215407A1/es
Publication of ES215407A1publicationCriticalpatent/ES215407A1/es
Sistema de peldanos intercambiables para el ascenso y des- censo por registros a galerias o camaras subterraneas y, en general, para salvar la distancia existente entre dos nive- les a diferente cota.