| US Patent: 2,727,417 
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| Pliers with Adjustable Toothed Pivot for Engaging Slots | 
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| Patentee: |  |
 | Joseph Eifel (exact or similar names) - Chicago, IL |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Oct. 13, 1951 |  
| Granted: | Dec. 20, 1955 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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	        ] |  |  |  | Joseph Eifel patent December 20, 1955 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The pivot point can be shifted by partial rotation. Rather than rotating smoothly on this pivot, the motion of the halves of the pliers is sideways travel of the rack gear teeth. The gripping faces of the the jaws are part of the patent. 
The specifications cite U.S. patent nos. 528,756, 637,251, 1,122,145, 1,540,745, 1,546,139, 1,772,224, 1,818,869, 1,867,505, and 2,483,380 as references. 
Advertised in 1954, along with Eifel's Geared Plierench.
Parker & Carter - patent attorneys |  |