The Stethophone, Bell Telephone Laboratories, monograph reprint B-105-1, January 1925.
Bell Telephone Laboratories, NY, orig. published in Electrical Communication, October 1924; 12 pages, references, diagrams, photographs.
Condition: Very Good, original light-blue paper wraps, three-hole-punched along margin as issued; toning and sunning to extremities, faded ink notation along top of front cover noting, instruments and measuremens; stapled wraps, binding tight, pages clean and unmarked, 7x9.
Categories: Computers and Society, Databooks, Handbooks, Manuals, Electronic and Electrical Engineering, General Histories and References, Hardware, Human-Computer Interaction, Technical Journals, Proceedings, Conferences, Bell System Technical Journals, BSTJ pre-1940
See all items by H. F. Dodge
Price: $15.00