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Individual
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Priority to ES120975UpriorityCriticalpatent/ES120975Y/en
Publication of ES120975UpublicationCriticalpatent/ES120975U/en
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Publication of ES120975YpublicationCriticalpatent/ES120975Y/en
Key for toy pianos characterized in that towards the end of the portion of the lever constitutive of the recaping key itself inside the piano box two preferentially countersunk holes are made which serve as means of hooking and articulation to two curved appendages in the form of hook existing at the end of the hammer arm percussor also having said lever a hole by means of which the lever is fixed anti-slip introducing into the aforementioned hole a tooth on the edge of the transverse support wall that allows it to swing and exercise its functions to base that the end of the lever opposite to the pressing of the key pushes abruptly to the arm of the hammer and makes him articulate and perform his percussion on the sound rods of the piano. (Machine-translation by Google Translate, not legally binding)
ES120975U1966-04-211966-04-21
KEY FOR TOY PIANOS.
ExpiredES120975Y
(en)