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
1 Matching Annotations
- Feb 2025
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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