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Electrical heating element
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Patent number 4,665,302
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Issue date May 12, 1987
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Standard Telefon OG Kabelfabrik A/S
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Hans A. Bergersen
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Electrical heating foil element
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Patent number 4,650,960
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Issue date Mar 17, 1987
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Standard Telefon OG Kabelfabrik A/S
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Hans A. Bergersen
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F24 - HEATING RANGES VENTILATING
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Electrical resistance heating element
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Patent number 4,501,956
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Issue date Feb 26, 1985
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International Standard Electric Corporation
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Hans A. Bergersen
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Electrical heating element
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Patent number 4,363,947
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Issue date Dec 14, 1982
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International Standard Electric Corporation
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Hans A. Bergersen
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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