| US Patent: 1,549,164 
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| Pipe Wrench | 
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| Patentee: |  |
 | William O. Thewes (exact or similar names) - Ridgeville, OH |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | May 26, 1922 |  
| Granted: | Aug. 11, 1925 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | William O. Thewes patent Aug. 11, 1925 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The design is intended to be strong enough to withstand strain at right angles to the "intended" direction (as in bending pipe), and have the spring in a protected location.
This patent and Thewe's Sept. 1, 1925 patent no. 1,552,091 are the beginning of the RIDGID line of pipe wrenches. |  |