Resultados de búsqueda: telephonic transmission theoretical and applied de hill jg

London: Longmans, 1920. hardcover. very good. Illustrated with 196 diagrams. 398 pages, 8vo, navy blue cloth (spine ends lightly rubbed). A very good copy.<br/><br/> Previous owner's signature on title page.<br/><br/>

London: Longmans, Green, 1920. First. Hard Cover. Presumed first printing. Blue cloth; 398 pps. with index; one folding plate, illustrated with diagrams and photographic plates. Early technical work on telephone transmission issues and problems. Very good, edges dusty, covers moderately rubbed.