4. Electricity: conductors and insulators
  5. Overhead
  6. Towers, poles or posts

Robert W. Hadfield

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Access means for flush floor fitting

Electricity: conductors and insulators – Overhead – Towers – poles or posts
Patent

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Activating undercarpet cable from infloor conductors

Electricity: conductors and insulators – Overhead – Towers – poles or posts
Patent

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Afterset

Electricity: conductors and insulators – Overhead – Towers – poles or posts
Patent

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Economy poke-thru

Static structures (e.g. – buildings) – Tensioned or flexed sheet facing
Patent

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Economy poke-thru

Static structures (e.g. – buildings) – Tensioned or flexed sheet facing
Patent

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Profile ID: LFUS-PAI-P-812795

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