Tilrovator is Ferguson, but not Harry’s

Enclosed you will find a picture of a Ferguson Tilrovator. Is this a product from the mind of Harry Ferguson? Or, is this an unrelated development?

These are made by Ferguson, but not our Harry Ferguson. I First saw them at Michigan State University maybe 45 years ago. I did some checking at the time and found the university used them for flower and vegetable plots. They were painted green as I recall. The company is located in Virginia, you can find them on the internet.