US Patent: 2,522,217 
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| Composite bit device for screw drivers and the like
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	        Patentees:
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 | LeRoy J. Wendling (exact or similar names) - Dayton, OH |  
| Harry G. Fischer (exact or similar names) - Dayton, OH |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Jul. 29, 1943 | 
 
| Granted: | 
Sep. 12, 1950 | 
 
 
 
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		  Patent Pictures:
	      
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                        Steve Gosselin Vintage Machinery entry for Apex Machine Co. 
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        Description: |  
| Wooden handled example marked APEX Made in USA 1500. Plastic handled example marked 1510. |  
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