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Individual
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Individual
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Priority to ES50249ApriorityCriticalpatent/ES50249A1/es
Publication of ES50249A1publicationCriticalpatent/ES50249A1/es
ES50249A1911-04-101911-04-10Un dispositivo para poder invertir los aparatos cinematográficos de proyección alrededor del eje del objetivo.
ExpiredES50249A1
(es)