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| Patents for Alexander Dunbar | |||||
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| Picture | Number | Date | Patentee | Title | |
 | CA-22,455 | Sep. 15, 1885 | A. Dunbar | Shingle machine | |
 | 658,353 | Sep. 25, 1900 | A. Dunbar | Machine for Dressing Staves | |
 | 702,932 | Jun. 24, 1902 | A. Dunbar | Machinery for Jointing or Finishing Stave Blanks for Casks | |
 | CA-92,877 | May 02, 1905 | A. Dunbar, Jr., W. Dunbar, A. Dunbar, A. Dunbar | Gang saw | |
 | 850,144 | Apr. 16, 1907 | A. Dunbar | Stave Jointing Machine | |
 | 929,662 | Aug. 03, 1909 | A. Dunbar | Logging-engine | |