| Patents for George O. Leopold |
Patents 1 -
10
of 80
      |
| Picture | Number | Date | Patentee | Title |
 | 864,633 | Aug. 27, 1907 | G.O. Leopold, T.J. Fegley | Screw holder for drivers |
 | 894,673 | Jul. 28, 1908 | G.O. Leopold | Ratchet mechanism |
 | 906,902 | Dec. 15, 1908 | G.O. Leopold | Speed-change gear |
 | 908,872 | Jan. 05, 1909 | G.O. Leopold | Ball bearing |
 | 917,319 | Apr. 06, 1909 | G.O. Leopold | Breast-drill |
 | 939,042 | Nov. 02, 1909 | G.O. Leopold | Gearing |
 | 968,372 | Aug. 23, 1910 | G.O. Leopold | Ball-bearing |
 | 977,957 | Dec. 06, 1910 | G.O. Leopold | Ratchet Mechanism for Screw-Drivers, &c. |
 | 979,939 | Dec. 27, 1910 | G.O. Leopold, T.J. Fegley | Spiral tool-driver |
 | 982,510 | Jan. 24, 1911 | G.O. Leopold | Ratchet mechanism |
