Pro-Pen
Stand alone machine with integrated software for micro percussion dot peen marking. Can mark thin metal and fragile plastic parts as well as cast or machined parts using a computer controlled stylus to indent the surface. Site has explanation of process and contains examples of usage.
http://195.226.69.11/index.php?id=75
http://www.applied-laser.co.uk/
http://www.hcmorrison.com/index.html
http://www.incrediblemachine.com
http://www.infosight.com/products.htm
http://www.martronics-corporation.com
http://www.matthewsmarking.com
http://www.mohawkmarkingsystems.com/index.html
http://www.ncb-marking.co.uk/index.html
http://www.numtec-interstahl.com
http://www.pci-solutions.co.uk/
http://www.roehlenengraving.com/
http://www.sitelmk3.it/default.asp?lang=1
http://www.textureame.com/emboss.html
http://www.trendmarking.com.au/
http://www.virtek.ca/products_marking.asp