| US Patent: 189,414 
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| Improvement in steam-pumps | 
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| Patentee: |  |
 | Christopher Ahrens (exact or similar names) - Cincinnati, OH |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | May 13, 1876 |  
| Granted: | Apr. 10, 1877 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Silsby, Race & Holly
 
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| Description: |  | When this patent was granted, H. C. Silsby owned Silsby Mfg. Co., formerly Silsby, Race Holly. In 1891 Silsby's company underwent a merger and became part of American Fire Engine Co. |  |