Author: Caldwell, Joseph S. (Joseph Stuart) - California. State Text-Book Committee - Ritchie, John W. (John Woodside) Source:Library of Congress Usage Rights: Publication Date: 1911 View Primary Source
Author: Italy. Ministero DI Agricoltura, Industria E Commercio. Descrizione Delle Macchine - United States. Patent Office - Italy. Ministero DI Agricoltura, Industria E Commerico. Bollettino Delle Privative Industriali Source:Library of Congress Usage Rights: Publication Date: 1887 View Primary Source