ES217605A1 - Electronic fonoindicador of time devices for reproduction of the human voice (Machine-translation by Google Translate, not legally binding)
- Google Patents
Electronic fonoindicador of time devices for reproduction of the human voice (Machine-translation by Google Translate, not legally binding)
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LINEIRA MIGUELEZ AMADOR
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LINEIRA MIGUELEZ AMADOR
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Priority to ES0217605ApriorityCriticalpatent/ES217605A1/en
Publication of ES217605A1publicationCriticalpatent/ES217605A1/en
Electronic time-signature device for reproduction of the human voice, essentially characterized by being provided with a connection to the power supply network in which one of its conductors is directly connected to a sound amplifier and an engine or similar device that puts on the sound system is moved and the second power conductor is connected to a spherical piece of automatic time interruption. (Machine-translation by Google Translate, not legally binding)
ES0217605A1954-09-281954-09-28Electronic fonoindicador of time devices for reproduction of the human voice (Machine-translation by Google Translate, not legally binding)
ExpiredES217605A1
(en)
System and device for the determination of hearing gain obtained in operations of the hearing (Machine-translation by Google Translate, not legally binding)