Campagnolo Ultrashift, Escape, Powershift Identification
They're second generation Ergopowers. I don't know the name for the mechanism, or even if there is one, but it seems similar to current UltraShift. For original spare part codes, look up Chorus 10S in spare parts catalog. Looks like UltraShift cables have the same dimensions. 

I have been using third party Campagnolo-compatible wires and Shimano outer cables with success, the original ones didn't seem to like low temperatures.