US Patent: 2,218,319 
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| Adjustable Extension
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	        Patentee:
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 | Edward M. Pfauser (exact or similar names) - Elm Grove, WI |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Jun. 03, 1939 | 
 
| Granted: | 
Oct. 15, 1940 | 
 
 
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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        Description: |  
| Quick and screw adjustable extension for a jack -- Blackhawk produced equipment for auto body repair including the "Porto-Power" line employing hydraulic jacks.
Morsell, Lieber & Morsell - patent attorneys 
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