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Priority to ES91804UpriorityCriticalpatent/ES91804Y/en
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Publication of ES91804YpublicationCriticalpatent/ES91804Y/en
New toy piano, characterized by consisting of an axis of rotation, driven by transmission and mounted at its ends on bearings, which presents spaced and coincident with the keys on the inside of the piano, some hooks of some pieces with free movement but without possibility of detaching, that by effect of the centrifugal force when the axis is in rotation, are displaced towards the outside, hitting repeatedly on the sound part of the corresponding pressed key, making a continuous sound in the musical note that detaches from the key pressed. (Machine-translation by Google Translate, not legally binding)
ES91804U1962-02-241962-02-24
New toy plane
ExpiredES91804Y
(en)