| Patents for Joseph H. Klein |
Patents 31 -
38
of 38
      |
| Number | Date | Patentee | Title | Type |
| 894,673 | Jul. 28, 1908 | G.O. Leopold | Ratchet mechanism | ratcheting screwdrivers |
| 914,174 | Mar. 02, 1909 | S.G. North | Screw-holder for screw-drivers | screwdrivers |
| 914,978 | Mar. 09, 1909 | W.H. Ridgway | Overflow device for pressure-tanks, &c. | hoists, winches, come-alongs |
| 917,319 | Apr. 06, 1909 | G.O. Leopold | Breast-drill | breast drills |
| 939,042 | Nov. 02, 1909 | G.O. Leopold | Gearing | eggbeater drills |
| 939,829 | Nov. 09, 1909 | J.R. Grundy | Insulating shaft-coupling | industrial machine shaft couplings |
| 1,015,235 | Jan. 16, 1912 | G.O. Leopold | Gearing | eggbeater drills |
| 1,169,657 | Jan. 25, 1916 | G.O. Leopold | Drill | drill presses |
