Two Guys From Barnum, Iowa And How They Helped Save Basketball: A History Of U.S. Patent 4,534,556 : Paul D. Estlund And Kenneth F. Estlund, Inventors

This is the true story of the making and marketing of an invention by two American brothers who grew up on a farm in Iowa, about two miles from where the author grew up. They are credited by many with helping to save the great game of basketball in the la