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Outdoor advertising system
Outdoor advertising system
Filed: August 24th, 2006 [Granted]
Assignee: Irvin Steel Inc
Patent Number: 7770314
US007770314B2 (12) United States Patent Dean (io) Patent No.: (45) Date of Patent: US 7770314 B2 Aug. 10, 2010 (54) OUTDOOR ADVERTISING SYSTEM (75) ...