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| Consumption of Coal Calculator https://www.rypn.org/forums/viewtopic.php?f=1&t=33124 |
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| Author: | ChuckM [ Mon Apr 09, 2012 1:37 pm ] |
| Post subject: | Consumption of Coal Calculator |
Looking for information and an example of a "Consumption of Coal Calculator" copyright 1909 by W.H. Miner Co. |
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