Automatic toll switching equipment with automatic ticketing developed in order to bolster decreasing net profits of independent telephone companies on short distance toll calls; ticketing system temporarily stores data on magnetic tape from which information is printed as toll ticket. (See also Am Inst Elec Engrs -- Trans (Communication and Electronics) n 7 v 72 Part 1 July 1953 p 399-44)
XY toll ticketing system
Elec Eng
Electrical Engineering ; 72 , n 6
1953
6 pages
Article (Journal)
English
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Engineering Index Backfile | 1944
|Engineering Index Backfile | 1953
|Online Contents | 1997