File:Marchant EB9.jpg
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Summary
| Description |
Italiano: Calcolatrice Marchant EB-9 (1920 circa), basata sul meccanismo adapting segments di Carl Friden English: Marchant EB-9 calculator (1920 circa). Based on adapting segments by Carl Friden |
| Date | |
| Source | Own work |
| Author | Ancelli |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:07, 15 November 2011 | | 1,892 × 1,455 (238 KB) | Ancelli |
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