Historical clue formulations

• Company where the computer mouse was developed — 2020-04-14
• Canon rival — 2017-02-19
• Pioneer in photocopying — 2016-09-19
• Copy off another's paper? — 2016-08-10
• Duplicate — 2014-11-02
• WorkCentre maker — 2014-06-07
• Certain dupe — 2013-12-18
• Office copy, say — 2012-02-06
• ColorQube maker — 2011-03-04
• Copy, of a sort — 2010-06-28
• Canon competitor — 2006-11-28
• Copy — 2006-03-16
• Copy, in a way — 2005-01-23
• Copy — 2002-08-14
• Certain reproduction — 2002-05-05
• Copy — 2001-09-15
• Copy at the office — 1997-04-18
• Kind of copy — 1995-09-10
• Copy of a sort — 1994-02-08