Hollerith Punched Card Code* (Proposed USA Standard) CACM April, 1968 USA Standard, card code, punched card, punched card code, hole-patterns, hole-patterns assignment, punched card systems 1.4 2.0 2.2 2.43 2.9 3.15 3.24 3.50 3.57 3.7 3.80 3.81 3.82 4.11 4.12 CA680414 JB February 23, 1978 10:14 AM 1756 5 1756 1756 5 1756 1756 5 1756