Reports and letters on the Classen process of producing ethyl alcohol, charcoal, etc. from sawdust and wood waste.
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| Imprint: | Chicago : Classen Lignum Company, 1903. |
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| Description: | 40 p. ; 24 cm. |
| Language: | English |
| Series: | History of technology preservation project ; (MN 01128.6). |
| Subject: | |
| Format: | Microform Book |
| URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/1308850 |
| Physical Description: | 40 p. ; 24 cm. |
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