If you find a patent number or patent date by this manufacturer that is not on this
                                list, please contact the Site Historian.
                            
                            
			
                                
                                    Key to Links for Patent Information
                                
                                
                                    USPTO = U.S. Patent Office .
                                    Images of the actual patent can be viewed on the U.S. Patent Office web site but
                                    a special TIFF viewer must be installed with your browser in order properly work.
                                    More information on how to configure your computer to view these patents can be
                                    found at TIFF image Viewers
                                        for Patent Images.
                                    DATAMP = Directory of American Tool And
                                        Machinery Patents . A sister site to VintageMachinery.org with information
                                    on patents related to machinery and tools. A much easier user interface than the
                                    USPTO's for finding information on machinery patents.
                                
                                
                                    
  
  
    | 9,441 | Dec. 07, 1852 | Drilling-machine | Charles W. Coe | Ashtabula, OH |  | 
  
    | XC-552 | Sep. 19, 1855 | Machine for drilling holes (and other operations) in metals | Charles W. Coe | Sandwich, Canada | XC patents are Canadian patents issued between 1824 and 1869. | 
  
    | 37,433 | Jan. 20, 1863 | Improvement in drilling and screw-cutting machines | Charles W. Coe | Corunna, MI |  | 
  
    | RE2,487 | Feb. 19, 1867 | Improvement in drilling and bolt-tapping machines | Charles W. Coe | Fentonville, MI |  | 
  
    | 86,001 | Jan. 19, 1869 | Improved drilling and bolt-tapping machine | Charles W. Coe | Fentonville, MI | Improvements to 2,487. | 
  
    | 216,381 | Jun. 10, 1879 | Improvement in drilling-machines | Charles W. Coe | Fentonville, MI | Improvements to patent 37,443. |