| US Patent: 650,549 
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| Gas Engine | 
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| Patentee: |  |
 | Frederick W. Toedt (exact or similar names) - Hamburg, Fremont County, IA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jan. 30, 1899 |  
| Granted: | May 29, 1900 |  USPTO (New site tip)
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                        Joel Havens
 
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| Description: |  | Claim:
The combination in a gas-engine constructed substantially as shown and provided with cylinder-heads having serpentine chambers therein, of valved mixing-chambers connected to the cylinder-heads, each chamber having a gas-inlet opening between the valves therein and an air-inlet opening below one of the valves. |  |