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Priority to ES0043409UpriorityCriticalpatent/ES43409Y/en
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Publication of ES43409YpublicationCriticalpatent/ES43409Y/en
"A new set of tuning forks for toy pianos", characterized in that the metal rods of different length which are linked stepwise to the stringer or frame of the lyre constitute the musical elements of the piano, are fixed to said frame by means of the wedging of one of its extremities machined in the form of conical tip or trunk-conical in two holes of coinciding conicity that run parallel to the repeated frame. (Machine-translation by Google Translate, not legally binding)
ES0043409U1954-08-091954-08-09
A new set of toy piano tuning forks
ExpiredES43409Y
(en)