A CO.sub.2 gas laser device comprises a plurality of divided cathode electrodes disposed in a linear row extending transversely across a high-speed flow of a gas containing CO.sub.2, and parts of the cathode electrodes producing negative glow are disposed at the same height as anodes at a downstream...http://www.google.fr/patents/US4841538?utm_source=gb-gplus-shareBrevet US4841538 - CO.sub.2 gas laser device
