http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f5-subject=Electric controllers -- Ohio -- Cleveland.) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f5-subject%3DElectric%20controllers%20--%20Ohio%20--%20Cleveland. Results for your query: docsPerPage=100;f5-subject=Electric controllers -- Ohio -- Cleveland. Tue, 28 Jul 2020 12:00:00 GMT Clark Controller Company Records and Photographs. Clark Controller Company https://catalog.wrhs.org/collections/view?docId=ead/MS5340.xml The Clark Controller Company was founded in 1925 by Primus P.C. Clark in Cleveland, Ohio. The company produced auxiliary electrical control apparatus for heavy-duty applications, such as steel and non-ferrous mills, cranes, rubber calenders, machinery, and power presses. The collection consists of correspondence, advertising, marketing materials, ephemera, photographic negatives, and photographs. https://catalog.wrhs.org/collections/view?docId=ead/MS5340.xml Thu, 01 Jan 2015 12:00:00 GMT