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 ES68281ApriorityCriticalpatent/ES68281A2/es
Publication of ES68281A2publicationCriticalpatent/ES68281A2/es
ES68281A1918-11-161918-11-16Perfeccionamientos en discos de máquinas parlantes y sus similares y en los dispositivos para impresionarlos.
ExpiredES68281A2
(es)
Unos medios, con los métodos correspondientes, para sincronizar los efectos ópticos de los cinematógrafos y los efectos acústicos de los fonógrafos y otros por el estilo.