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Individual
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Individual
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Priority to ES0068865UpriorityCriticalpatent/ES68865Y/es
Publication of ES68865UpublicationCriticalpatent/ES68865U/es
Application grantedgrantedCritical
Publication of ES68865YpublicationCriticalpatent/ES68865Y/es
Un nuevo tecnígrafo, caracterizado por haberse previsto que el giro de sus elementos no se efectúe sobre ejes que puedan tener rozamientos y desgastes, sino por medio de la aplicación sucesiva de unas cintas metálicas sobre unos carretes dispuestos en el interior de los cilindros existentes en los codos del aparato.