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04:52, 5 March 2008 (diff | hist) . . (-198)‎ . . Hollerith Punch Card ‎ (→‎Multiple Uses of the Punch Card Technology)
04:47, 5 March 2008 (diff | hist) . . (+1,717)‎ . . Hollerith Punch Card ‎ (→‎The role of the Punch Cards in the American Census)
04:32, 5 March 2008 (diff | hist) . . (+209)‎ . . Hollerith Punch Card ‎ (→‎The role of the Punch Cards in the American Census)
04:30, 5 March 2008 (diff | hist) . . (+4,457)‎ . . Hollerith Punch Card ‎

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