US Patent: 1,320,777 
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| Tool
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	        Patentee:
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 | Joseph L. Mayhew (exact or similar names) - Williamstown, MA |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Jun. 02, 1919 | 
 
| Granted: | 
Nov. 04, 1919 | 
 
 
 
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		  Patent Pictures:
	      
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Joseph L. Mayhew patent November 4, 1919  |  
 
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                        Stan Schulz 
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        Description: |  
| Pliers type tool for opening and closing chain links. Advertised in 1920 as the "Link-Key" chain pliers by Mayhew Tool Co. of Williamstown, MA. 
Other than being formed of stamped metal parts rather than forged / cast parts, functionally it is nearly identical to patent no. 1,320,547 granted to Edward F. Happensack of Cincinnati, OH ( also on Nov. 4, 1919! ) -- the patent used for the I.X.L. and other chain pliers. Happensack's application is dated nine days earlier than this patent's. |  
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