The day laser etching was invented is mysterious but we realize that laser engraving was reported for use for the initial time in 1978. Since the two processes are quite related (laser engraving entails some amount of melting), the origin of laser etching is arguably similar to laser engraving. hi http://drakonas.wip.lt/redirect.php?url=https://www.chineselaser.com/laser-control-software/