4. Electricity: electrical systems and devices
  5. Safety and protection of systems and devices
  6. Transformer protection

Donald J. Farmer

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Electrical bushing having a replaceable stud

Electricity: conductors and insulators – Insulators – Through wall or plate
Patent

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Insulating cover for pole bracket supports

Equipment for production – distribution – or transformation of ene – Distribution – modification or control – Insulator
Patent

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Lightning arrester system for underground loop distribution circ

Electricity: electrical systems and devices – Safety and protection of systems and devices – Transformer protection
Patent

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Vacuum head for film

Photocopying – Contact printing – Machine
Patent

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Profile ID: LFUS-PAI-P-640619

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