| US Patent: 242,951 
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| Saw | 
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| Patentee: |  |
 | Curtis R. Marvin (exact or similar names) - Stamford, CT |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Feb. 07, 1881 |  
| Granted: | Jun. 14, 1881 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Russ Allen.
 
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| Description: |  | Earliest adjustable depth backsaw with rip and crosscut teeth in its patent catagory (30/502). Curiously, he mentions notches on the blade to help secure the frame as a possibility but does not claim this feature - a feature later claimed by Wuest in patent 607107. |  |