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Individual
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Individual
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Priority to ES0030991UpriorityCriticalpatent/ES30991Y/en
Publication of ES30991UpublicationCriticalpatent/ES30991U/en
Application grantedgrantedCritical
Publication of ES30991YpublicationCriticalpatent/ES30991Y/en
Book-toy with sound, characterized by the fact that the back cover of the book is arranged in the form of a box, inside which the sound producing mechanism is placed, originating this because a cylinder provided with spikes, when turning, forces these to stumble with a series of metallic sheets conveniently arranged to the effect, vibrating each one of said prongs to its corresponding sheet, this vibration being the producer of the sound. (Machine-translation by Google Translate, not legally binding)
ES0030991U1952-05-061952-05-06
Book-toy with sound
ExpiredES30991Y
(en)