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Kunkler Edward
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Kunkler Edward
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Priority to ES4335ApriorityCriticalpatent/ES4335A2/es
Publication of ES4335A2publicationCriticalpatent/ES4335A2/es
ES4335A1884-07-011884-07-01Mejoras en el método empleado en la preparación de superficies para pintar o grabar por medio de la fotografía.
ExpiredES4335A2
(es)
Un procedimiento mecánico matemático para el contraste de las pesas y pesadas, por medio del equilibrio, evitando el uso de las pesas defectuosas o faltas.