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<p>Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
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<br>Subjects: projection; lines; elevation; plane; parallel; vertical; points; point; draw; intersecting; draw lines; vertical lines; vertical plane; sectional elevation; mechanical drawing; inclined plane; lines parallel; curved surface; upper face; lines drawn</div>
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William S. Binns</div>
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