A scribing device for forming a scribe line on a work comprises a vibration generator for generating vibration, a cutter for cutting a work by utilizing vibration thereof, a shaft extending vertically from the vibration generator so as to transmit the vibration of the vibration generator to the cutter,...http://www.google.es/patents/US6832439?utm_source=gb-gplus-sharePatente US6832439 - Scribing device
