| US Patent: 59,721 
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| Gage for Determining Angles Machinists' Combination Tool
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| Patentee: |  |
 | E. C.C. Kellogg (exact or similar names) - Hartford, CT |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Nov. 13, 1866 |  USPTO (New site tip)
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                        Ralph Brendler
 
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| Description: |  | This pair of machinist calipers features scales for direct reading of circumference and diameter of rods, as well as angle gages for 30, 60, and 90 degrees, as well as a screw gage and even compass points. |  |