Jones, Franklin D Ingenious mechanisms for designers and inventors - New York Industrial Press 1930 - 536 p ISBN: 9780831110291 Subjects--Topical Terms: Mechanical Engineering LC Class. No.: 621.8 JON 1930 Dewey Class. No.: 621.8 JON 1930 National Library of Medicine Call No.: 621.8 JON 1930