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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Application filed by IndividualfiledCriticalIndividual
Priority to ES113585UpriorityCriticalpatent/ES113585Y/en
Publication of ES113585UpublicationCriticalpatent/ES113585U/en
Application grantedgrantedCritical
Publication of ES113585YpublicationCriticalpatent/ES113585Y/en
A hearing aid apparatus essentially characterized by being composed of a body carrying the microphone the components of the amplifier and the battery while the headset of the apparatus is mounted elastically protruding from the said body so that it can fit directly into the ear canal of the ear of the user. (Machine-translation by Google Translate, not legally binding)
ES113585U1965-05-041965-05-04
A HEARING DEVICE.
ExpiredES113585Y
(en)
System and device for the determination of hearing gain obtained in operations of the hearing (Machine-translation by Google Translate, not legally binding)
Improvements in telephones provided with microphone capsule and headset with a piezo-electric crystal (Machine-translation by Google Translate, not legally binding)