US Patent: 952,327 
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| Wrench
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        Patent Dates:
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| Applied: | 
May 06, 1909 | 
 
| Granted: | 
Mar. 15, 1910 | 
 
 
 
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		  Patent Pictures:
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H. & T. Hand patent March 15, 1910  |  
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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        Description: |  
| A swinging hook jaw is moved by a sliding link; an internal spring connected to the link tends to close the jaw.
Markings on a known example include "T. HAND" and the patent number. |  
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