| Patents for John D. Karle |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 1,405,596 | Feb. 07, 1922 | J.D. Karle | Brush holder | motor brush holders |
| 1,418,379 | Jun. 06, 1922 | J.D. Karle | Method of securing ball-bearings to shafts | industrial machine bearings |
| 1,620,259 | Mar. 08, 1927 | J.D. Karle | Medallion | |
| 1,737,538 | Nov. 26, 1929 | J.D. Karle | Short-circuiting device | electric motors |
| 1,769,785 | Jul. 01, 1930 | J.D. Karle | Dynamo-electric machine | repulsion start induction run motors |
| 1,769,786 | Jul. 01, 1930 | J.D. Karle | Dynamo-electric machine | repulsion start induction run motors |
| 1,911,574 | May 30, 1933 | J.D. Karle | Commutator Slotting Machine | commutator slotting machines |
