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Individual
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Individual
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Priority to ES0294983ApriorityCriticalpatent/ES294983A1/es
Publication of ES294983A1publicationCriticalpatent/ES294983A1/es
Dispositivo de dibujo de bloques-diagramas, construcciones y piezas industriales, con trazo continuo, en perspectiva conica, con el plano del cuadro vertical o inclinado.