Morse apparatus and alphabet - Public domain book illustration
Резюме
Print shows apparatus for sending and receiving coded telegraph messages, with the alphabet and numbers in "Morse code."
Illus. in: Knight's American mechanical dictionary. New York : Hurd and Houghton, 1877, vol. 2, fig. 3225.
Published in: The tradition of technology : Landmarks of Western technology ... / Leonard C. Bruno. Washington, D.C. : Library of Congress, 1995, p. 237.
Теги
Дата
01/01/1877
Авторы
Knight, Edward H. (Edward Henry), 1824-1883.
Источник
Library of Congress
Ссылка
Информация о правах
No known restrictions on publication.