| Patents for Potter & Johnston Machine Co. |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 635,976 | Oct. 31, 1899 | J. Johnston, J.C. Potter | Lathe-chuck | metal lathe chucks |
| 772,477 | Oct. 18, 1904 | J. Johnston, J.C. Potter | Turret-lathe | turret lathes |
| RE12,287 | Nov. 22, 1904 | J. Johnston, J.C. Potter | Shaping Machine | |
| 849,697 | Apr. 09, 1907 | J.C. Potter, J. Johnston | Clutch | metal lathes |
| 942,843 | Dec. 07, 1909 | J.C. Potter, J. Johnston | Gearing | turret lathes |
| 991,886 | May 09, 1911 | J. Johnston, J.C. Potter | Turret Lathe | turret lathes |
| 1,028,605 | Jun. 04, 1912 | J.C. Potter | Bar-turning tool | |
| 1,098,167 | May 26, 1914 | J.C. Potter | Metal-sawing machines | metal sawing machines |
| 1,109,301 | Sep. 01, 1914 | J.C. Potter | Tool for machining bevel-gear blanks and other objects with inclined surfaces | metal lathe accessories and attachments |
| 1,115,972 | Nov. 03, 1914 | J.C. Potter | Automatic turret-lathe | turret lathes |
| 1,197,541 | Sep. 05, 1916 | J.C. Potter | Automatic turret-lathe | turret lathes |
