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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES1974203929UpriorityCriticalpatent/ES203929Y/es
Publication of ES203929UpublicationCriticalpatent/ES203929U/es
Application grantedgrantedCritical
Publication of ES203929YpublicationCriticalpatent/ES203929Y/es
Dispositivo perfeccionado para proyección de transparencias en retro-proyectores, caracterizado en esencia por comprender un soporte susceptible de quedar superpuesto en la pantalla de iluminación del retroproyector, cuyo soporte ofrece la particularidad de estar provisto de una zona plana, en la que ha sido prevista una ranura transversal destinada a retener en debida posición un bloque de transparencias.
ES1974203929U1974-06-151974-06-15Dispositivo perfeccionado para proyeccion de transparenciasen retroproyectores.
ExpiredES203929Y
(es)