Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
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3/00
Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
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H01B3/18
mainly consisting of organic substances
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H01B3/36
condensation products of phenols with aldehydes or ketones
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