1932-3 – Mechanical Horse – D. G. Alzetta (Italian)

The above image from Popular Science April, 1933. The Harford Courant Mar 6, 1933 p16 Italian Designs Mechanical Horse From Steel Tubing —- Device Looks Like Grasshopper Stepping Along Road Spezia, Italy—(AP.)—A mechanical horse, designed to substitute for the farm animal or even light tractor, has been invented by an engineer here, Signor D. G. …

1983 – “Six-Legged Hydraulic Walker” – Ivan Sutherland (American)

1983 "Trojan Cockroach", a Six-Legged Hydraulic Walker by Ivan Sutherland. The Sutherland Walker was a six-legged all-terrain robotic designed by Sutherland Sproull Associates with the Robotics Institute at Carnegie Mellon University under contract to the Defense Advanced Research Projects Agency (DARPA). The robot used a gasoline motor to power its legs and required a driver …

1977 – Newt – Ralph Hollis (American)

"Newt" updated showing manipulator. In an email response from Dr. Hollis (2010),  I learnt that his old robot is called "Newt," not "NEWT."  (It is not an acronym.)  He is planning to put  together a small web site with lots of pictures and background on Newt, its predecessors and follow-ons.  Ralph will send a pointer …