Odex 1, from Odetics, Inc.
Odex 1 is a six-legged walking robot that weighed only 300 pounds. Its onboard computer could be operated remotely and the robot moved under its own power. It is capable of reconfiguring its shape to be tall and slender or short and squat, and able to walk in either configuration or anywhere between the two.
Each leg is able to lift 400 lbs, the "legs" are versatile enough to be used as manipulators as well. Odex is capable of lifting over 2,100 lbs vertically, or carrying over 900 lbs. at normal walking speed. To display Odex 1 agility, engineers commanded the robot to walk to a truck, get on the truck, and then get off and actually move the truck. The device's tremendous strength-to-weight ratio.
Odetics, Inc., in Anaheim, California 1984