US Patent: 453,539 
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| Machine for mortising wood
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	        Patentees:
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 | Lucien Henry Berry (exact or similar names) - Philadelphia, PA |  
| Lyman Osgood Orton (exact or similar names) - Philadelphia, PA |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Apr. 16, 1890 | 
 
| Granted: | 
Jun. 02, 1891 | 
 
 
 
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                        Jeff Joslin Vintage Machinery entry for Berry & Orton Co. 
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        Description: |  
| The patent attorney was John Richards, formerly of Richards, London, & Kelly, a firm succeeded (indirectly) by Berry & Orton.This is an early design for a hollow chisel mortiser. Like the early Greenlee designs, this is a horizontal mortiser. |  
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