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  2. Till roll - Wikipedia

    en.wikipedia.org/wiki/Till_roll

    Till rolls are paper rolls for use in cash registers and Electronic Point of Sale printers. There are a number of different types available, including: Thermal: One side of the paper has a special coating that is heat sensitive. 2 & 3 ply: These rolls require an impact printer and produce multiple copies

  3. Thermal paper - Wikipedia

    en.wikipedia.org/wiki/Thermal_paper

    Thermal paper (often supplied in roll form, and sometimes referred to as an audit roll) is a special fine paper that is coated with a material formulated to change color locally when exposed to heat. It is used in thermal printers , particularly in inexpensive devices such as adding machines , cash registers , and credit card terminals and ...

  4. List of the United States Army fire control and sighting ...

    en.wikipedia.org/wiki/List_of_the_United_States...

    This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F".The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.

  5. AN/PSQ-42 - Wikipedia

    en.wikipedia.org/wiki/AN/PSQ-42

    The AN/PSQ-42 Enhanced Night Vision Goggle-Binocular (ENVG-B) is a third-generation passive binocular night vision device developed for the United States Army by L3Harris. It combines dual tube image-intensifying (I²) and thermal-imaging technologies into a single goggle, enabling vision in low-light conditions.

  6. Thermal printing - Wikipedia

    en.wikipedia.org/wiki/Thermal_printing

    Thermal printing (or direct thermal printing) is a digital printing process which produces a printed image by passing paper with a thermochromic coating, commonly known as thermal paper, over a print head consisting of tiny electrically heated elements. The coating turns black in the areas where it is heated, producing an image.

  7. Research Enterprises Limited - Wikipedia

    en.wikipedia.org/wiki/Research_Enterprises_Limited

    REL owes its existence to the demands of General Andrew McNaughton, who was concerned about a lack of optical equipment after the Canadian experience in World War I.. In August 1939, General Andrew McNaughton, President of the National Research Council (NRC), asked the head of the NRC's Optics Section, Leslie E. Howlett, to prepare a report on how to set up an optics industry in Canada.

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