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  2. Duplicating machines - Wikipedia

    en.wikipedia.org/wiki/Duplicating_machines

    Duplicating machines were the predecessors of modern document-reproduction technology. They have now been replaced by digital duplicators, scanners, laser printers and photocopiers, but for many years they were the primary means of reproducing documents for limited-run distribution. The duplicator was pioneered by Thomas Edison and David ...

  3. Spirit duplicator - Wikipedia

    en.wikipedia.org/wiki/Spirit_duplicator

    v. t. e. A spirit duplicator (also referred to as a Rexograph or Ditto machine in North America, Banda machine or Fordigraph machine in the U.K. and Australia) is a printing method invented in 1923 by Wilhelm Ritzerfeld that was commonly used for much of the rest of the 20th century. The term "spirit duplicator" refers to the alcohols that were ...

  4. Carbonless copy paper - Wikipedia

    en.wikipedia.org/wiki/Carbonless_copy_paper

    Carbonless copy paper. Carbonless copy paper ( CCP ), non-carbon copy paper, or NCR paper (No Carbon Required, taken from the initials of its creator, National Cash Register) is a type of coated paper designed to transfer information written on the front onto sheets beneath. It was developed by chemists Lowell Schleicher and Barry Green, [ 1 ...

  5. Carbon paper - Wikipedia

    en.wikipedia.org/wiki/Carbon_paper

    Handwriting duplicated through carbon paper. Carbon paper (originally carbonic paper) consists of sheets of paper that create one or more copies simultaneously with the creation of an original document when inscribed by a typewriter or ballpoint pen. The email term cc which means ā€˜carbon copyā€™ is derived from carbon paper.

  6. Photocopier - Wikipedia

    en.wikipedia.org/wiki/Photocopier

    Photocopier. A photocopier (also called copier or copy machine, and formerly Xerox machine, the generic trademark) is a machine that makes copies of documents and other visual images onto paper or plastic film quickly and cheaply. Most modern photocopiers use a technology called xerography, a dry process that uses electrostatic charges on a ...

  7. Printing of the United States Constitution - Wikipedia

    en.wikipedia.org/wiki/Printing_of_the_United...

    The Constitutional Convention 's printers, Dunlap & Claypoole, printed the drafts and final copies of the United States Constitution. John Dunlap and David C. Claypoole had printed for Congress since 1775, including the first copies of the Declaration of Independence [ 1] and Articles of Confederation, and were designated Congress's official ...

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