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Open coil electric heaters

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent

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Open coil electric heating elements

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent

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Open coil electric resistance heater using twisted...

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Reexamination Certificate

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Open coil electric resistance heater with offset coil...

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Reexamination Certificate

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Open coil heater for efficient transport

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent

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Open coil heater for efficient transport with nestable heating e

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent

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Open-coil heater assembly and insulator therefor

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent

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Outdoor electric personal heating system

Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent

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