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Priority to ES108815UpriorityCriticalpatent/ES108815Y/es
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Publication of ES108815YpublicationCriticalpatent/ES108815Y/es
Regla para la realización de perspectivas caracterizada esencialmente per determinar mediante unas reglas previamente graduadas de acuerde can el método de perspectiva las tres dimensiones de los cuerpos.
ES108815U1964-10-101964-10-10Una regla para la realizacion de perspectivas.
ExpiredES108815Y
(es)