US Patent: 378,890 
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| Bench Dog
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	        Patentee:
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 | Frederic Larson (exact or similar names) - Royalton, MN |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Dec. 27, 1887 | 
 
| Granted: | 
Mar. 06, 1888 | 
 
 
 
USPTO (New site tip) Google Patents 
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                        Ralph Brendler 
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        Description: |  
| This workbench clamp uses a pair of angled supports to fit into the normal dog holes, and provides a ratcheting lever to slide the main body. |  
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