Edison, Thomas Alva
- Three patents, one with an autograph note, 25 February–18 March 1919
- paper, ink
Patent no. 1,295,533 is dated 25 February 1919, and is a patent for "Plastic Composition and the Method of Preparing the Same". Included with this item are two other patents also dealing with plastic composition. Patent number 1,295,356, two pages in length, is dated 25 February 1919; patent 1,297,685 is four pages, dated 18 March 1919.
Edison was a prolific inventor, holding 1,093 U.S. patents in his name, as well as many patents in the United Kingdom, France, and Germany. More significant than the sheer volume of Edison's patents was the widespread and lasting impact of his inventions: the incandescent light bulb (see lot 57), sound and motion picture recording, and many more.