(n) :
an invention of Thomas A. Edison, a machine for making printed copies, using typed stencil, ubiquitous until the 1990s when photocopying became competitive (if not cheaper), and considerably easier to use
(n) :
an invention of Thomas A. Edison, a machine for making printed copies, using typed stencil, ubiquitous until the 1990s when photocopying became competitive (if not cheaper), and considerably easier to use