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Individual
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Priority to ES1849000454ApriorityCriticalpatent/ES454H1/en
Publication of ES454H1publicationCriticalpatent/ES454H1/en
An "Arutnev System" harpsichord pedal key mechanism applicable to all models of pianos to imitate all string instruments such as harpsichord or harpsichord, mandolin, harp and all its similar by means of pedal or register.