US Patent: 1,662,005 
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Carpenter's Plane Ready Edge Blade
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	        Patentee:
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 | Charles A. Johnson (exact or similar names) - Unionville, CT |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Jan. 23, 1926 | 
 
| Granted: | 
Mar. 06, 1928 | 
 
 
 
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                        Russ Allen. "Vintage Machinery" entry for The Stanley Works 
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        Description: |  
| Further refinement of the thin replaceable (i.e. razor) blade concept. The blade is now secured by a hinge and "cam-like" action between the cutter (grooved), securing plate, and cap iron. 
This patent along with three others: 1,440,649, 1,553,642, and 1,651,634 were the basis and improvement of Stanley's Ready Edge blades. |  
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