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Date: 2015-01-30 10:17:22Rescue 21 Emergency management Search and rescue Coast guard Digital Selective Calling Selective calling Global Maritime Distress Safety System National Distress System United States Coast Guard Public safety Rescue | rescue 21 Features • Direction-finding capabilityAdd to Reading ListSource URL: www.uscg.milDownload Document from Source WebsiteFile Size: 1,47 MBShare Document on Facebook |