PC

TwitterFacebook
Get flash to fully experience Pearltrees
http://en.wikipedia.org/wiki/QR_code QR code for the URL of the English Wikipedia Mobile main page, " http://en.m.wikipedia.org " Telephone directory with QR code on the cover QR code (abbreviated from Quick Response Code ) is the trademark for a type of matrix barcode (or two-dimensional bar code) first designed for the automotive industry in Japan.

QR Code