US Patent: 381,799 
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| Cutter-head
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	        Patentee:
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 | William H. Lamson (exact or similar names) - Chicago, IL |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Mar. 12, 1887 | 
 
| Granted: | 
Apr. 24, 1888 | 
 
 
 
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                        Jeff Joslin Vintage Machinery entry for Lamson Cutter Head Co. 
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        Description: |  
| "My invention relates particularly to that class of circular saws that are used for the production of moldings, grooves, dadoes, and surfaces and edges; and it consists, principally, in so forming the plate that the teeth cut successively at different points, but to the same depth." |  
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