patentstorm.us 258 85 http://www.patentstorm.us/ http://www.patentstorm.us/images/logo.gif PatentStorm -> Patents -> Industrial electric heating furnaces http://www.patentstorm.us/rss/class/patents/rss-373.xml Recent patents filings in USPTO Class 373 Industrial electric heating furnaces. Tue, 18 Jun 2013 16:04:38 patents@patentstorm.us en