US Patent: 1,440,649 
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Plane Plane for "Ready Edge" Blades
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	        Patentee:
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 | Thomas T. Tvedt (exact or similar names) - Brooklyn, NY |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Nov. 22, 1921 | 
 
| Granted: | 
Jan. 02, 1923 | 
 
 
 
USPTO (New site tip) Google Patents 
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                        Russ Allen. 
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        Description: |  
| Plane designed to use inexpensive razor type blades and specifically mentions Gillette safety razor blades. Nineteen claims compose the patent all prefaced with "In a plane,..." This appears to be more of a patent of a concept rather than a idea ready for production.
This patent along with three others: 1,553,642, 1,651,634, and 1,662,005 were the basis and improvement of Stanley's Ready Edge blades. |  
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