from Cinegraphic.net:
Kaleidoscope Patents!
story © Michael Betancourt, November 15, 2004 all rights reserved.
URL: https://www.cinegraphic.net/article.php?story=2004111509073277
Jon Sondregger's site has a collection of kaleidoscope patents that include some visual music instruments.
Copyright © Michael Betancourt November 15, 2004 all rights reserved.
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