http://www.rssboard.org/rss-specification 720 XTF Search Results (f3-format=Book;f4-subject=Imprints, Early American To 1820;f5-subject=Steel -- Welding) http://catalog.wrhs.org/collections/search?f3-format%3DBook;f4-subject%3DImprints,%20Early%20American%20To%201820;f5-subject%3DSteel%20--%20Welding Results for your query: f3-format=Book;f4-subject=Imprints, Early American To 1820;f5-subject=Steel -- Welding Thu, 01 Jan 1970 12:00:00 GMT The petition of Daniel Pettibone to the Senate and House of Representatives of the United States, for the renewal of his patent for welding cast steel to iron, in such a manner as to be applied to edge tools or other purposes where steel is required. Pettibone, Daniel. http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT