| US Patent: 350,077 
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| Gas Motor Engine | 
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| Patentee: |  |
 | Nicolaus August Otto (exact or similar names) - Cologne-on the-Rhine,  German Empire |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | May 27, 1886 |  
| Granted: | Sep. 28, 1886 |  USPTO (New site tip)
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                        Joel Havens
 "Vintage Machinery" entry for Otto Gas Engine Works
 
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| Description: |  | Patented in Belgium, 13 May 1886, #73,097 and made application for a patent in Great Britain, 28 Apr 1886, #5,804. |  |