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USPTO National Trademark Expo

Music artist Chubby Checker sings and performs “The Twist” along with “Max Impact,” a U.S. Air Force band during the opening ceremony of the 2011 U.S. Patent and Trademark Office National Trademark Expo Oct. 14, 2011 in Alexandria, Va. The U.S. Air Force Trademark and Licensing program provided information at its booth about the more than 7,000 marks the Air Force possesses. (U.S. Air Force photo by Staff Sgt. Alex Martinez)

PHOTO BY: Staff Sgt. Alex Martinez
VIRIN: 111014-F-XX000-001.JPG
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