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(Hollerith Keyboard Punch Patent Number 487,737) |
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Latest revision as of 07:00, 5 March 2008
Hollerith Keyboard Punch
Patent Number 487,737
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:00, 5 March 2008 |  | 672 × 435 (76 KB) | Trh249 (Talk | contribs) | Hollerith Keyboard Punch Patent Number 487,737 |
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