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

John Richard Gumley

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Ignition apparatus and method

Electricity: electrical systems and devices – Safety and protection of systems and devices – Transient responsive
Patent

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Lightning air terminals and method of design and application

Electricity: conductors and insulators – Lightning protection – Rods
Reexamination Certificate

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Transient overvoltage and lightning protection of power...

Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1612172

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