http://www.rssboard.org/rss-specification 720 XTF Search Results (f2-subject=Agriculture;f3-subject=Patents -- United States) http://catalog.wrhs.org/collections/search?f2-subject%3DAgriculture;f3-subject%3DPatents%20--%20United%20States Results for your query: f2-subject=Agriculture;f3-subject=Patents -- United States Thu, 01 Jan 1970 12:00:00 GMT Report of the commissioner of patents for the year 1852: Agriculture. 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 Report of the commissioner of patents for the year 1853: Agriculture. 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 Report of the commissioner of patents for the year 1854: Agriculture. 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 Report of the commissioner of patents for the year 1856: Agriculture. 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 Report of the Commissioner of Patents for the year 1861: Agriculture. 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