Historical clue formulations

• Industrial dept. — 2021-12-18
• Lab dept. — 2018-09-08
• Corp. budget item — 2017-11-12
• Testing division, for short — 2015-11-18
• Experimental division, for short — 2014-06-25
• Early stage of industrial work, for short — 2014-01-27
• Lab dept. — 2013-12-21
• Corporate division, informally ... or a hint to the answers to the eight starred clues — 2013-06-18
• Corporate dept. that may include labs — 2011-08-30
• Corp. creativity department — 2011-08-01
• Corp. budget item — 2008-01-10
• Area of corporate investment, briefly — 1997-07-28
• Area of corporate expenditure, in brief — 1996-04-08