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US09111672B2 Multilevel correlated magnetic system 有权
多级相关磁系统

Multilevel correlated magnetic system
摘要:
A multilevel magnetic system described herein includes first and second magnetic structures that produce a net force that transitions from an attract force to a repel force as a separation distance between the first and second magnetic structures increases. The multi-level magnetic system is configured to maintain a minimum separation distance between a transition distance where the net force is zero and a separation distance at which a peak repel force is produced.
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