Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Priority to ES207589ApriorityCriticalpatent/ES207589A1/es
Publication of ES207589A1publicationCriticalpatent/ES207589A1/es
ES207589A1953-02-051953-02-05Sistema y dispositivo de complemento sonoro para las proyecciones cinematográficas y emisiones de televisión
ExpiredES207589A1
(es)