| US Patent: 2,370,308 
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| Self-Locking Pliers | 
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| Patentee: |  |
 | Abraham G. Hanson (exact or similar names) - Monrovia, CA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Mar. 12, 1943 |  
| Granted: | Feb. 27, 1945 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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			1 | 2
	        ] |  |  |  | Abraham G. Hanson Pat. Feb. 27, 1945 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The action of the secondary pivot point locks the grip as the pliers is closed, and increases the pressure of the grip as the jaws approach closure. |  |