US Patent: 1,532,799 
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| Magneto
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	        Patentees:
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 | Terrence G. Louis (exact or similar names) - Springfield, MA |  
| Harold H. Clark (exact or similar names) - Springfield, MA |  
| Ira E. Hendrickson (exact or similar names) - Springfield, MA |  
| Phelps Brown (exact or similar names) - Springfield, MA |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Jul. 18, 1923 | 
 
| Granted: | 
Apr. 07, 1925 | 
 
 
 
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                        Joel Havens "Vintage Machinery" entry for Witherbee Igniter Co.; Wico Electric Co. 
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        Description: |  
| Improvement to patent 1,517,948. |  
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