| Patents for Frank M. Davis |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 730,882 | Jun. 16, 1903 | F.M. Davis | Automatic multispindle machine | nut or bolt making machines |
| 797,409 | Aug. 15, 1905 | F.M. Davis | Calipers | measurement gauges |
| 890,616 | Jun. 16, 1908 | F.M. Davis | Lubricator | lubricators |
| 1,213,340 | Jan. 23, 1917 | F.M. Davis | Gas-engine | cylinders |
| 1,231,572 | Jul. 03, 1917 | F.M. Davis | Valve mechanism | internal combustion engine valves |
| 1,279,286 | Sep. 17, 1918 | F.M. Davis | Duplex Milling Machine | milling machines |
| 1,287,254 | Dec. 10, 1918 | F.M. Davis, A.C. Hoeh | Bearing | internal combustion engines |
| 1,366,770 | Jan. 25, 1921 | F.M. Davis | Gearing | metalworking machine gearing |
| 1,376,861 | May 03, 1921 | F.M. Davis | Universal duplex milling-machine | milling machines |
| 1,415,530 | May 09, 1922 | F.M. Davis | Feeding and clamping means for metal-working machines | metalworking machine mechanisms |
| 1,782,138 | Nov. 18, 1930 | F.M. Davis, A.C. Hoeh | Continuously-operating multiple lathe | multiple spindle lathes |
| 1,877,277 | Sep. 13, 1932 | F.M. Davis | Vertical continuous drilling machines | multiple spindle drill presses |
| 1,877,560 | Sep. 13, 1932 | F.M. Davis | Vertical Continuous Milling Machine | milling machines |
| 2,033,686 | Mar. 10, 1936 | F.M. Davis | Multiple operation machine | workpiece changers and storage mechanisms |
| 2,065,173 | Dec. 22, 1936 | F.M. Davis | Milling machine spindle mounting | metalworking machine mechanisms |
