Apparatus or tools for correcting punching or slotting errors

Introduced: July 1974

Last revised: January 2006

Full Title

Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting > Apparatus or tools for correcting punching or slotting errors

Classification Context

Section:: PHYSICS
Class:: COMPUTING OR CALCULATING; COUNTING
Subclass:: GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS