Robert Gilmour LeTourneau, the inventor of earthmoving machines, secured nearly 300 patents over the course of his life. During World War II, about 70 percent o

In the history of heavy equipment development, no single man’s name is more respected or revered as that of R. G. LeTourneau. Robert Gilmour LeTourneau is con

In the history of heavy equipment development, no single man’s name is more respected or revered as that of R. G. LeTourneau. Robert Gilmour LeTourneau is con