Pp1040-vintage Parchment Slide Rule Patent Poster is a piece of digital artwork by Cole Borders which was uploaded on March 10th, 2020.
Pp1040-vintage Parchment Slide Rule Patent Poster
Displayed are detailed patent drawings for a numerical calculating device, dated August 22, 1922. Two figures show different views of the mechanical... more
by Cole Borders
Title
Pp1040-vintage Parchment Slide Rule Patent Poster
Artist
Cole Borders
Medium
Digital Art
Description
Displayed are detailed patent drawings for a numerical calculating device, dated August 22, 1922. Two figures show different views of the mechanical components and their arrangement, with annotations describing each part. The invention is credited to George Gordon Dobson, with the illustration signed by a proxy, presumably an attorney.
Uploaded
March 10th, 2020
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