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Priority to ES0235975ApriorityCriticalpatent/ES235975A2/es
Publication of ES235975A2publicationCriticalpatent/ES235975A2/es
Mejoras introducidas en el objeto de la patente de invención nº 227.256, que recae por un procedimiento para la fabricación de perlas artificiales, caracterizado porque, el núcleo o soporte de la perla, se sumerje durante diez segundos aproximadamente, en disolvente apropiado que producirá el fundido superficial y suficiente del citado núcleo o soporte para formar un solo cuerpo, endureciendo la totalidad de su superficie.
ES0235975A1957-06-111957-06-11UN NUEVO PROCEDIMIENTO PARA LA FABRICACIoN DE PERLAS ARTIFICIALES
ExpiredES235975A2
(es)