Successive means devised for coast-to-coast communication in United States. July: Facilities for overland communication which antedated steam for land transportation and electricity for communication. Oct: Pioneer railroad projects; development of aviation; transcontinental air mails. Jan 1941: Place which transcontinental telephony holds in picture of communication. (See also Bell Telephone Quarterly v 19 n 3 July 1940 p 197-210, and n 4 Oct p 292-303)
Conquest of continent
Bell Telephone Mag
Bell Telephone Magazine ; 20 , n 1
1941
12 pages
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1940
|Engineering Index Backfile | 1932
|GWLB - Gottfried Wilhelm Leibniz Bibliothek | 1680
Engineering Index Backfile | 1931
Engineering Index Backfile | 1935