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Individual
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Individual
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Priority to ES0211228ApriorityCriticalpatent/ES211228A2/es
Publication of ES211228A2publicationCriticalpatent/ES211228A2/es
Mejoras introducidas en el objeto de la patente principal nº 193687 por: Ampliadora fotográfica por cabrestante caracterizadas porque para el enfoque está provista de un cabrestante y un cuadradillo con tres orificios para tornillo de elevación para cable y para tornillo prisionero.
ES0211228A1953-09-141953-09-14UNA AMPLIADORA FOTOGRáFICA POR CABESTRANTE
ExpiredES211228A2
(es)