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Why didn't we patent the spreadsheet? Were we stupid? (1999)
We didn't patent VisiCalc at Software Arts because you really couldn't patent software prior to 1981, and VisiCalc was shown to the public in 1979.
Dan Bricklin
Dan Bricklin -- The personal web site of the co-creator of VisiCalc
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Visit bricklin.com → On Hacker News Sep 2013 – Jun 2023
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The History of VisiCalc (1999-2018)
VisiCalc -- Links to the information from its creators, Dan Bricklin and Bob Frankston, on this web site