| US Patent: 685,282 
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| Cylinder Wrench | 
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| Patentee: |  |
 | John P. Johnson (exact or similar names) - Storden, MN |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Feb. 04, 1901 |  
| Granted: | Oct. 29, 1901 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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			1 | 2
	        ] |  |  |  | John P. Johnson Pat. October 29, 1901 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | There is an offset bend in the shank so the "T" handle is in line with the sockets. The socket pair has opposite-facing teeth, with corresponding opposite-facing teeth on the pivoting frame member holding the connecting shank for the socket pair. A 1907 ad shows two sizes of square and two sizes of hex socket pairs. 
Marketed as the "BOSS" or "IMPROVED BOSS" cylinder tooth wrench. A trade announcement in 1902 noted the Minneapolis Implement Co. had an exclusive five-year distribution contract for the wrench. |  |