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Priority to ES105946UpriorityCriticalpatent/ES105946Y/en
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Publication of ES105946YpublicationCriticalpatent/ES105946Y/en
A patch for percussion musical instruments essentially characterized by being a flat piece of uniform thickness peripherally prolonged in an inclined area bent inward by its edge giving rise to a horizontal section on which rests one of the two rings of trapezoidal rectangular section which are located inversely on both sides of said inclined area of the patch acting on it as a wedge; all being covered by a third encircling ring of rectangular section opened by its internal upper vertex. (Machine-translation by Google Translate, not legally binding)
ES105946U1964-04-251964-04-25
A PATCH FOR PERCUSSION MUSICAL INSTRUMENTS.
ExpiredES105946Y
(en)