| Patents for Frank D. Winkley |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| 391,571 | Oct. 23, 1888 | F.D. Winkley | Windmill | wind power apparatus |
| 463,088 | Nov. 10, 1891 | F.D. Winkley | Filling attachment | |
| 470,734 | Mar. 15, 1892 | F.D. Winkley | Oil-cup | industrial machine lubrication |
| 492,451 | Feb. 28, 1893 | F.D. Winkley | Grinding apparatus | |
| 523,254 | Jul. 17, 1894 | F.D. Winkley | Oil-can | oil cans |
| 608,243 | Aug. 02, 1898 | F.D. Winkley | Oil-hole cover or cap | oil or grease fittings |
| 608,244 | Aug. 02, 1898 | F.D. Winkley | Oil-hole cover or cap | oil or grease fittings |
| 642,860 | Feb. 06, 1900 | F.D. Winkley | Oil-hole cover or cap | oil or grease fittings |
| 865,221 | Sep. 03, 1907 | F.D. Winkley | Lubricator | lubricators |
| 925,147 | Jun. 15, 1909 | F.D. Winkley | Pump | piston pumps |
| CA-127,916 | Sep. 06, 1910 | F.D. Winkley | Pompe | piston pumps |
| 980,727 | Jan. 03, 1911 | F.D. Winkley | Combined pump-jack and engine base | piston pumps |
| CA-133,996 | Jun. 27, 1911 | F.D. Winkley | Tige de Pompe et Base de Machine | piston pumps |
| 1,014,988 | Jan. 16, 1912 | F.D. Winkley | Carbureter | carburetors |
| 1,267,302 | May 21, 1918 | F.D. Winkley | Lubricator | lubricators |
