where bell was appointed professor of vocal physiology in . as professor of vocal physiology at boston university , bell was engaged in training teachers in the art of instructing the deaf how to speak and experimented with the leon scott phonautograph in recording the vibrations of speech. this apparatus...
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zobacz pełny wykaz publikacji autora/autorów: andrzej jurkiewicz , piotr andrzej micek , andrzej podsiadło , andrzej tadeusz kot , sebastian mularz cyfrowy identyfikator dokumentu: hydrauliczne multicięgnowe urządzenie napinająco-transportujące — [hydraulic multiple-link tensioning and conveying apparatus...
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