Exhibit: OCR Bar Codes 1983 – 1987 / Half a Decade of Human and Machine Errors August 4, 2015 By Roger Brody [featured_image] Please login to download Download is available until [expire_date] Version [version] Download 65 File Size 6.63 MB File Count 1 Create Date August 4, 2015 Last Updated August 4, 2015 Exhibit: OCR Bar Codes 1983 - 1987 / Half a Decade of Human and Machine Errors by Douglas Quine