keypunch

vi.

用打孔机打孔；

Key punch
Key punch
Key punch
Joseph Bouchard, B.Mus., Data Processing Manager
Keypunch input with repeat readout incorporating fluid amplifying means
Problems in the conversion of bibliographical data—A keypunching experiment
A Comparison of the Speed and Accuracy of Reading Aloud and Keypunching Digits
A handbook of modern keypunch operation
Is Keypunch Verification Really Necessary?
A study on the allocation of middle-aged employees on keypunching operation. : Part I. Aptitude tests and its relation to trainning ...
Uncovering ‘hidden’ contributions to the history of Digital Humanities: the Index Thomisticus’ female keypunch operators
Unidentified young people converse during Liberty Mutual keypunch training.
Problems in the conversion of bibliographical data - A keypunching experiment