http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f4-subject=Patents -- Ohio -- Indexes) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f4-subject%3DPatents%20--%20Ohio%20--%20Indexes Results for your query: docsPerPage=100;f4-subject=Patents -- Ohio -- Indexes Thu, 01 Jan 1970 12:00:00 GMT Carriage and wagon: index of United States patents, 1790-1910, Ohio and city report. Green, Susan. 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