Poor, unloved Gipiemme. One of a handful of unloved Italian component makers (along with Ofmega, Galli, Regina, and probably a few others), who just didn't have the appeal of Campagnolo. Was their stuff bad? Nah - some of it was sourced from other vendors, like Simplex, that made some parts that people love. In their zeal to set themselves apart, however, GPM managed to churn out some seriously ugly groups in the mid-to-late 80's.
Chronosprint Aero. Probably their high-end group, perhaps alongside WHITE LASER (queue laser sounds).
White Laser. I can only assume its named that because you want to burn out your retinas after seeing it, and a laser would make a fine tool with which to do that. Obviously an answer to Shimano's Sante group.
Any GPM fans out there?