| Patents for Frederick F. Clarke |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 1,013,129 | Jan. 02, 1912 | F.F. Clarke | Tool Holder and Securing Device for Same | lathe tool holders and tool posts |
| 1,044,990 | Nov. 19, 1912 | F.F. Clarke, L.H. Cloburn | Currency Cutting Machine | |
| 1,167,887 | Jan. 11, 1916 | F.F. Clarke | Drill-press | drill presses |
| 1,185,060 | May 30, 1916 | F.F. Clarke | Spring Counterbalance for the Rams of Boring Mills | metalworking machine mechanisms |
| 1,185,061 | May 30, 1916 | F.F. Clarke | Lubricating System for the Spindle and Table Drive for Vertical Boring and Turning Mills | vertical boring mills |
| 1,185,064 | May 30, 1916 | F.F. Clarke | Clutch Gearing for Machine Tools | industrial machine gearing |
| 1,188,043 | Jun. 20, 1916 | F.F. Clarke | Stop Index System for Boring Mills | metalworking machine mechanisms |
| 1,351,504 | Aug. 31, 1920 | F.F. Clarke | Center Indicating Device | vertical boring mills |
