The Progress of Invention in the Nineteenth Century

Cover The Progress of Invention in the Nineteenth Century
The Progress of Invention in the Nineteenth Century
Edward W Edward Wright Byrn
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528, 484, 542, 275, 562, 337, and 599, 863. The Oliver has made many friends for itself by its FIG. 143. ELLIOTT & HATCH BOOK TYPEWRITER.
fine alignment and visible writing, and shares with the other standard ma- chines a considerable patronage.
It is not practicable to give a full illustration of the state of the art in typewriters, as it has grown to an industry of large proportions. Nearly 1, 700 patents have been granted for such machines, and more than 100 use- ful and meritorious machines
... have been devised and put upon the market. Among these may be mentioned the Hall, Underwood, Manhattan, Wil- liams, Jewett, and many others.
Besides the regular typewriters, various modifications have been made to suit special kinds of work. The "Comptometer" used in banks is a species of typewriter, as is also the Dudley adding and subtracting machine, known as the "Numerograph, " and covered by patents Nos. 554, 993, 555, - 038, 555>O39, 579, O 47 and 579, 048. Typewriters for short hand characters, and for foreign languages, and for printing on record and blank books, are also among the modern developments cf this art.


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