| Patents for Benjamin B. Hull |
Patents 1 -
12
of 12
      |
| Number | Title | Classification(s) |
| 524,396 | Controller for Electric Motors | 200/10, 200/7, 200/9, 361/135, 361/14 |
| 544,396 | Winding of dynamo-electric machines or motors | 310/267 |
| 714,811 | Brush-holder | 310/246, 439/28 |
| 714,881 | Clamping-finger | 310/65 |
| 784,807 | Dynamo-electric machine | 310/211, 310/64 |
| 882,602 | Controlling-Switch | 200/10, 218/28 |
| 890,697 | Protective device for unipolar machines | 310/178, 322/48, 340/679, 361/111, 361/23 |
| 897,475 | Alternating-current motor | 310/176, 318/726 |
| 928,037 | Dynamo-electric machine | 310/269 |
| 1,041,859 | Motor Controlling Device | 200/12, 74/565 |
| 1,135,327 | Dynamo-electric machine | 310/52, 310/54 |
| 1,194,923 | Alternating-current commutator-motor | 310/176, 318/725 |
