| US Patent: 400,850 
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| Hydrocarbureted Air Engine | 
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| Patentee: |  |
 | John Joseph Reveley Humes (exact or similar names) - Camberwell,Surrey County,  England |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Mar. 08, 1887 |  
| Granted: | Apr. 02, 1889 |  USPTO (New site tip)
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                        Joel Havens
 
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| Description: |  | Patented in England, 04 Sep 1886, #11,269; in Germany, 23 Feb 1887, #21,519; in France, 03 Mar 1887, #181,939; in Belgium, 05 Mar 1887, #76,589; in Canada, 20 May 1887, #44,330; in India, 27 Aug 1887, #153; in Italy, 25 Feb 1888, #3; in Spain, 10 May 1888, #7.805 and in Ceylon, 24 May 1888. |  |