http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f22-subject=Inventions -- History) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f22-subject%3DInventions%20--%20History Results for your query: docsPerPage=100;f22-subject=Inventions -- History Thu, 01 Jan 1970 12:00:00 GMT The age of invention: a chronicle of mechanical conquest. Thompson, Holland, 1873-1940 https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT The development of electrical technology in the 19th century. United States National Museum, Museum of History and Technology (U.S.) https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT