| US Patent: D150,435 
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| Combination Tool | 
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| Patentee: |  |
 | William F. McDowell (exact or similar names) - Pueblo, CO |  
 
| USPTO Classifications: |  | D8/81 |  
 
 
 
 
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| Patent Dates: |  
| Applied: | May 17, 1946 |  
| Granted: | Aug. 03, 1948 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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	        ] |  |  |  | William F. McDowell design patent August 3, 1948 |  Google Patents
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| Description: |  | An Oct. 1948 POPULAR MECHANICS write-up describes this tool as a box / crate opener, without naming the manufacturer. 
The specifications cite a 1940 edition of Francis Bannerman & Sons military supplies catalog along with patents no. 822,066, 1,479,741 and design D138,737 as references. |  |