Alexander Graham Bell
An exploration of the contribution made by Alexander Bell to world communications. Trained as a speech therapist and a deaf therapist, it was through his work in telegraph research that he first saw the idea of the telephone. From this idea he developed the first working telephone.
GenresBell, Alexander GrahamTelephony
64 pages
English edition · First published 1991 by Exley · ISBN 9781850152002
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