keypunches

Columbia University Computing History: IBM Keypunches
Computer key-punch work-station having adjustable copy support-shelf
Fatigue assessment on key punch operators, typists and others
Sequential Observation on Key Punches : Report II
Key Punch Instruction In High School.
Rapid Structure Searches via Permuted Chemical Line Notations. II. A Key-Punch Procedure for the Generation of an Index for a Smal...
A handbook of modern keypunch operation
Is Keypunch Verification Really Necessary?
Uncovering ‘hidden’ contributions to the history of Digital Humanities: the Index Thomisticus’ female keypunch operators
Unidentified young people converse during Liberty Mutual keypunch training.