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Johann Magg
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St. Georgen, DE
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last 30 patents
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Patent Grant
Electrical heating apparatus with a heating element of PTC material
Patent number
4,341,949
Issue date
Jul 27, 1982
Bosch-Siemens Hausgerate GmbH
Herbert Steiner
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Patent Grant
Heating element assembly with a PTC electric heating element
Patent number
4,324,974
Issue date
Apr 13, 1982
Bosch-Siemens Hausgerage GmbH
Herbert Steiner
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR