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BUY ELECTRON EYEWEAR DARKNESS CHANGER PATENT FOR SALE >> Patents for sale by inventor >> Noteworthy patents for sale ads >> Patents for sale information >> Sell a patent >> Sell a patent -order now

Electron Eyewear Darkness Changer Patent for Sale

Technology patents for sale available from Crystalens Ltd. Electron eyewear that changes darkness instantaneously. Selling price? Please contact the Technical Director.

Patent numbers: US6,433770 and US6,501,4437,070,342
Contact: Hyman Gross
Address: Sheraton House, Castle Park, Cambridge, CB3 0AX, UK
Phone: +44 1223 462244
E-mail: peterwlk@hotmail.com