This Day in History – August 8th, 1876

138 years ago today, Thomas Edison patented the “Autographic Printing” device on August 8, 1876. The patent covered the electric pen, used for making the stencil, and the flatbed duplicating press. In 1880 Edison obtained another patent for “Method of Preparing Autographic Stencils for Printing,” which covered the making of stencils using a file plate, a grooved metal plate on which the stencil was placed which perforated the stencil when written on with a blunt metal stylus.


The word “mimeograph,” however, was coined by Albert Blake Dick when he licensed Edison’s patents in 1887. Dick received Trademark Registration for the term “Mimeograph.”


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