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Scientific American, Vol. 76, No. 15 (1897) (1897)
leaf 3
volume), and the greatest devi- ters with 3 inch face lapping over each other, and form- constant in all positions of the car body. ations do not even amount to gj> of the average. ing a continuous cutting edge to turn the full length at —_————_—_s+ 80> oo __—_—_—"——_ The Gregorian Calendar, The… … Chicago Tribune. © 1897 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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