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Design of compact switchable magnetic grippers for the HyReCRo structure-climbing robot - ScienceDirect
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MBM Industry & Rail Tech GmbH Switchable fastening Magnets - Magswitch - MBM Industry & Rail Tech GmbH
Is there any simple, low-energy way to make a permanent magnet able to turn 'on and off' (similar to an electromagnet)? - Quora
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