| US Patent: 211,327 
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| Improvement in Rotary Measures | 
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| Patentees: |  
 | Fred A. Heberline (exact or similar names) - Mansfield, PA |  | Albert Boss (exact or similar names) - Mansfield, PA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Sep. 19, 1878 |  
| Granted: | Jan. 14, 1879 |  USPTO (New site tip)
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                        Ralph Brendler
 
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| Description: |  | This traveller is provided with a rotary counter to allow direct reading. |  |