| US Patent: 148,889 
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| Pipe-Tongs | 
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| Patentee: |  |
 | Anton Kotzum (exact or similar names) - New York, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jan. 24, 1874 |  
| Granted: | Mar. 24, 1874 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Anton Kotzum Pat. March 24, 1874 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The guide-piece and its clamping screw set the pivot point, making a relatively rapid adjustment for an adjustable pipe tongs. |  |