| US Patent: 286,030 
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| Gas Engine | 
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| Patentee: |  |
 | Siegfried Marcus (exact or similar names) - Vienna,  Austria-Hungary |  
 
| USPTO Classifications: |  | 123/149R, 123/156, 123/179.5, 123/195HC, 123/53.1, 123/65VD, 123/66, 123/67, 123/68, 123/74B, 261/80, 310/70R |  
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jun. 12, 1882 |  
| Granted: | Oct. 02, 1883 |  USPTO (New site tip)
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                        Joel Havens
 
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| Description: |  | Patented in Belgium, 13 May 1882, #57,960; in France, 15 May 1882, #148,954; in England, 23 May 1882, #2,423; and in Italy, 30 Jun 1882, Vol XVI, #14,290; XXVII, #401; XVII, #15,462; XXX #465 |  |