http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f13-subject=Refactories industry) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f13-subject%3DRefactories%20industry Results for your query: docsPerPage=100;f13-subject=Refactories industry Thu, 01 Jan 1970 12:00:00 GMT Modern refractory practice: with special reference to the products of Harbison-Walker Refractories Company, Pittsburgh, Pennsylvania. Harbison-Walker Refractories Company, Caxton Company 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