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  1. Feb 2025
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    1. chrisaldrich 07 Feb 2025
      edge-punched cards sold in theUnited States under the trademarks "Keysort," "E-Z Sort" and "Rocket"and in England as "Paramount" or "Cope-Chat" cards.

      Brand names of some common edge-notched cards

      edge-notched cards Keysort E-Z Sort Rocket (edge-notched cards) Paramount (edge-notched cards) Cope-Chat (edge-notched cards)

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