| US Patent: 2,645,142 
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| Spark Plug Adjusting Pliers | 
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| Patentee: |  |
 | Otto Schwenzfeler (exact or similar names) - McCook, Willow County, NE |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Jan. 22, 1951 |  
| Granted: | Jul. 14, 1953 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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	        ] |  |  |  | Otto Schwenzfeier patent July 14, 1953 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | A rotatable spark plug gap gauge and anvil are fixed to one jaw; the other jaw has an adjustable width gap to fit the spark plug body. 
The patent number appears on examples of the Snap-On CF series of spark plug gappers. 
The tool is described (with no maker name noted) in Mar. 1954 POPULAR MECHANICS.
Patent nos. 64,904, 764,212, 1,085,461, 1,249,394, 1,263,412, 1,384,209, 1,421,465, 1,439,664, 1,629,000 and 2,492,380 are cited as references. |  |