4. Electricity: conductors and insulators
  5. Insulators
  6. Through wall or plate

Donald W. Selby

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Combination lock extraction apparatus

Locks – Operating mechanism – Key
Patent

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Line secured current and voltage sensing apparatus

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent

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Line sensor with corona shield

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent

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Watertight bushing and bolt mounting assembly

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

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Profile ID: LFUS-PAI-P-237207

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