The present invention features an enclosure for a credit card reader. The enclosure has a top cover for protecting and enclosing the card reader and a base disposed below the card reader, enclosing the bottom surface thereof. The top cover need not be used. The base is configured to allow debris to be...http://www.google.de/patents/US6474550?utm_source=gb-gplus-sharePatent US6474550 - Credit card reader enclosure with debris opening