4. Electricity: magnetically operated switches, magnets, and electr
  5. Magnets and electromagnets
  6. Work or object holding type

Pierre Doyelle

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Demagnetizable electropermanent magnetic holder

Electricity: electrical systems and devices – Demagnetizing systems and processes
Patent

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Magnetic rail chuck

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Patent

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Method and device for the activation of large quantities of...

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Method and device for the activation of large quantities of...

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Permanent-magnet grab

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Patent

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Profile ID: LFUS-PAI-P-962682

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