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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES0041045UpriorityCriticalpatent/ES41045Y/en
Publication of ES41045UpublicationCriticalpatent/ES41045U/en
Application grantedgrantedCritical
Publication of ES41045YpublicationCriticalpatent/ES41045Y/en
A column for phonation, characterized essentially by being constituted by a tubular body mounted on a base at a certain height above the ground, and in which in the upper embouchure sits on a suitable ring a permanent or dynamic magnet speaker so that its opening it is towards the upper part adequately protected by a grid of any textile or similar material, the mission of said support tube being to reinforce and increase the loudness of the vibrations of the membrane of said speaker. (Machine-translation by Google Translate, not legally binding)
ES0041045U1954-03-171954-03-17
A column for training
ExpiredES41045Y
(en)
Improvements introduced in the automatic means of movement and sound for toys in general (Machine-translation by Google Translate, not legally binding)