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| Number | Title | Issue Date |
| 4377731 | Device for automatically interrupting the supply of electric power to a motor and its utilization The device is intended to cut-off the supply of electric power to a motor (4) automatically when this latter is locked rotationally under the action of a mechanical resistance. This device comprises balls (5) coupled for rotation with the motor (4) and di... | 03/22/1983 |
