US Patent: 2,148,573 
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| Wrench
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	        Patentee:
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 | Cyrus J. Mulcay (exact or similar names) - Aurora, IL |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
May 23, 1936 | 
 
| Granted: | 
Feb. 28, 1939 | 
 
 
 
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		  Patent Pictures:
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Cyrus J. Mulcay patent February 28, 1939 with Richards-Wilcox drum opener  |  
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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        Description: |  
| Multi-function wrench for barrel bungs and the like.
"My present invention has for its  principal object to provide a wrench which is adapted for fitting all the various types of screw plugs in common use on steel drums."
Listed as Nine-In-One All Purpose Drum Opener in a SHAPLEIGH HARDWARE wholesale catalog. |  
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