(plural card punches)
"card-punch." YourDictionary, n.d. Web. 16 January 2019. <https://www.yourdictionary.com/card-punch>.
card-punch. (n.d.). Retrieved January 16th, 2019, from https://www.yourdictionary.com/card-punch
(1) An early peripheral device that punched holes into cards at 100 to 300 cards per minute.
(2) See keypunch machine.
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