US Patent: 628,655 
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| Saw-sharpening machine
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	        Patentee:
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 | Lars Larsen Filstrup (exact or similar names) - Chicago, IL |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Apr. 10, 1899 | 
 
| Granted: | 
Jul. 11, 1899 | 
 
 
 
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                        Jeff Joslin Vintage Machinery entry for Covel Mfg. Co. 
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        Description: |  
| Improvements to patent 574,855, reissued as RE11,733. The improvements are to the mechanism that inclines the driving pulley to keep it aligned with the grinding-wheel pulley as its inclination changees. |  
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