| Patents for Thomas Lumsden |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 1,032,758 | Jul. 16, 1912 | T. Lumsden | Tool and like grinding machine | tool grinders |
| 1,047,424 | Dec. 17, 1912 | T. Lumsden | Tool Holder for Tool and Like Grinding Machines | sharpening tool holders |
| 1,072,629 | Sep. 09, 1913 | T. Lumsden | Tool Holder for Grinding Machines | sharpening tool holders |
| 1,133,651 | Mar. 30, 1915 | T. Lumsden | Tool Holder for Tool Grinding Machines | sharpening tool holders |
| 1,185,219 | May 30, 1916 | T. Lumsden | Tool Holder for Grinding Machines | sharpening tool holders |
| 1,231,920 | Jul. 03, 1917 | T. Lumsden | Tool Holder for Grinding Machines | sharpening tool holders |
