This type of machine is similar to and derived from what is now known as a TLB (Tractor-Loader-Backhoe), which is to say, an agricultural tractor fitted with a front loader and rear backhoe attachment.
The true development of the backhoe actually began in 1947 by the inventors that started the Wain-Roy Corporation of Hubbardston, Massachusetts.
In April 1948 Wain-Roy Corporation sold the first all-hydraulic backhoes, mounted to a Ford Model 8N tractor, to the Connecticut Light and Power Company for $705.
Backhoe loaders are also not generally used for towing and usually do not have a power take-off (PTO) as often this is used to drive the hydraulic pump operating the attachments.
When the backhoe is permanently attached, the machine usually has a seat that can swivel to the rear to face the hoe controls.
In 1970, Hy-Dynamic, now a division of Bucyrus-Erie, manufacturer of the Dynahoe, was the first company to incorporate a four-wheel drive system into their backhoe loaders, allowing these models to go over almost any terrain with little difficulty.
Often, the backhoe bucket can also be replaced with powered attachments such as a breaker, grapple, auger, or a stump grinder.