| US Patent: 27,179 
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| Improvement in Marking Gages for Sewing Machines | 
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| Patentee: |  |
 | Calvin D. Wheeler (exact or similar names) - New York, NY |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Feb. 14, 1860 |  
 
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                        Russ Allen.
 
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| Description: |  | Combination of a sliding rule with a spring point that is used for measuring and marking material for folding as well as to facilitate the operation of guiding the folds through the sewing machine.
Known example marked: C. D. WHEELER/PATENTED FEB 14/1860 |  |