Inventor of Collapsible Spacer
Originally uploaded by marcn.
Go Spencer.
See the rest of the photos from Invention Convention here: http://www.flickr.com/photos/marcn/sets/221566/
Go Spencer.
See the rest of the photos from Invention Convention here: http://www.flickr.com/photos/marcn/sets/221566/
Great to see inventive young minds!
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