about.com has a nice review of different toy patents including the weeping doll, game boy and the yo-yo.
20th dec, 2009
Toy patents
Responses
I really like this US patent
“Method of exercising a cat”:
http://www.freepatentsonline.com/5443036.pdf
I wonder what kind of patent infringement that I’m involving myself in when I exercise my cat using a presentation laser pointer?
By: SaX on januar 4th, 2010
at 16:46
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