| 摘要 |
A computer controlled electric motor with a driving shaft having a resilient cup type safe knob gripper fixedly attached to the distal end thereof for rotation therewith. A key pad for programing the computer memory with a plurality of different rotational sequences. Each sequence is associated with a combination of a different combination lock. Any of the lock opening rotational sequences stored in the computer memory can be addressed by the key pad. A storage battery provides operating and stand by power for the computer, memory and motor.
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