Varied uses of adding and calculating machines, billing machines, electric sorting and tabulating machines, loose-leaf devices, car index systems, etc., in railway, accounting work, together with their possibilities in helping to effect greater economies in office operation.
Labor-saving appliances in accounting work
Ry. Rev
Railway Review ; 75 , n 1
1924
6 pages
11 Figs.
Article (Journal)
English
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