| US Patent: 139,233 
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| Improvement in reciprocating steam-engines and saw-mills combined | 
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| Patentee: |  |
 | Isaac Brown (exact or similar names) - Glenville, MD |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Apr. 09, 1873 |  
| Granted: | May 27, 1873 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Jeff Joslin
 Vintage Machinery entry for Isaac Brown
 
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| Description: |  | There are quite a few patents for combined steam engine and reciprocating sawmill, but this patent is unusual in that it integrates a circular sawmill. |  |