4. Electrical resistors
  5. Zigzag or sinuous resistance element
  6. Element forms a coating

Welwyn Electric Limited

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Electric lamp failure indicator circuit

Communications: electrical – Systems – Call station
Patent

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Process for producing an electrical resistor having a metal foil

Metal working – Method of mechanical manufacture – Electrical device making
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Resistors

Electrical resistors – Zigzag or sinuous resistance element – Element forms a coating
Patent

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