Title: Amazing American inventors of the 20th century
Description: "Learn about these amazing inventors of the 20th century: William Lear, Philo Farnsworth, Beatrice Kenner, Gertrude Belle Elion, Gordon Gould, Charles Ginsburg, Robert Shurney, Jack Kilby, Stephanie Kwolek and Lonnie Johnson"--
Subjects: Inventors, Juvenile literature, Biography, History, Inventors, juvenile literature, United states, biography, juvenile literature
Places: United States
Time periods: 20th century