Liquid Paper Liquid Paper Liquid Paper is an American brand of the Newell Brands company marketed international that sells correction fluid, correction pens, and correction tape. Mainly used to correct typewriting in the past, correction products now mostly cover handwriting mistakes. In 1956, Bette Nesmith Graham, the mother of The Monkees' Michael Nesmith, invented the first correction fluid in her kitchen. Working as a typist, she used to make many mistakes and always strived for a way to correct them. Starting on a basis of tempera paint she mixed with a common kitchen blender, she called the outcome fluid "Mistake Out" and
Typewriter original Haas Typewriter Atlases (Pica version) and (Non-Pica version) and the TYPE system developed by Dr. Philip Bouffard, the Royal Canadian Mounted Police's Termatrex Typewriter classification system, and the Interpol's Typewriter classification system, among others. Because of the tolerances of the mechanical parts, slight variation in the alignment of the letters and their uneven wear, each typewriter has an individual "signature" or "fingerprint", which may permit a typewritten document to be traced back to the typewriter on which it was produced. For devices utilizing replaceable components, such as a typeball element, any association may be restricted to a specific element,