ded to perfect anything already in use, nor to sub-serve the comfort of the general public. The object is pri-marily to relieve that most unfortunate class of our fellowbeings, the blind, from their chief enemy, inactivity; andalso to prevent injury to or loss of the eyesight, in personswho find… … out continuously looking at their work. The apparatus waspatented through the Scientific American Patent AgencyNovember 14, 1871. Those desirous of availing themselvesof its benefits may address the manufacturer, V. E. Mauger,at 110 Reade street, New York city. — i mm) i rnni i tnw ■ The K*yal…
Patents · Ofthe · Consists · Water · Scientific American · Labor · Hand guide · Address munn · Nova scotia · Steam pressure · Sewing machine · India rubber · Street car · Brown stone · Water Supply
Internet Archive · Public Domain Mark 1.0. Free to use for anything.