You will find the very brief history of Robot vacuum cleaner business .From Electrolux ,Dyson to iRobot,Ecovac.
Electrolux Trilobite Robotic Vacuum Cleaner v2.0
The Worlds FIRST Robot Vacuum WAS AMAZING - The Electrolux Trilobite - YouTube
Household robot : 네이버 블로그
Electrolux Trilobite ZA1 in action - YouTube
Science Museum on Twitter: "Also on display is the world's first domestic robot vacuum cleaner, manufactured by Electrolux. The Trilobite was first sold in May 2003 in the UK and used sonar
The first robot vacuum cleaner Trilobite launched in 2001 – Electrolux Group