US Patent: 495,868 
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| Steam-boiler
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	        Patentee:
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 | Christopher Ahrens (exact or similar names) - Cincinnati, OH |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Feb. 06, 1893 | 
 
| Granted: | 
Apr. 18, 1893 | 
 
 
 
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                        Jeff Joslin Vintage Machinery entry for Silsby, Race & Holly 
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        Description: |  
| Improvements to patent 358,430. This patent number was seen in an 1893 catalog from the American Fire Engine Co., a firm descended from Silsby, Race & Holly (see link). |  
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