Google.com has now patent search, good tool for patent offices but also useful tool for designers, engineers, inventors etc. to now what was done or not. I discovered this new feature on google.com thanks to this post at designsojourn.com .
sources:
http://www.designsojourn.com
http://googleblog.blogspot.com
http://www.google.com
korsvhveed
June 22, 2007
Hello! Good Site! Thanks you! twlpnyuhds