4. Electricity: magnetically operated switches, magnets, and electr
  5. Magnets and electromagnets
  6. Magnet structure or material

David Futa

Inventor

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Electromagnet

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent

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Grapple

Handling: hand and hoist-line implements – Miscellaneous compound implement – Plier or tong type
Utility Patent

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Grapple

Handling: hand and hoist-line implements – Mortar hawk
Patent

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Profile ID: LFUS-PAI-P-1547354

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