| US Patent: 438,750 
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| Protractor Bevel | 
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| Patentee: |  |
 | Edward E. Harrington (exact or similar names) - Everett, MA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jun. 11, 1890 |  
| Granted: | Oct. 21, 1890 |  USPTO (New site tip)
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                        Steve Gosselin
 
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| Description: |  | Very interesting metallic bevel with a geared pivot and preset angles on a disc, as well as a slotted stock reminiscent of the Stanley #30 angle divider. |  |