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Individual
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Sistema de caldeamiento mediante impregnación de superficies, caracterizada porque utiliza un tipo de substancias semilíquidas que conducen la electricidad y oponen a su paso una resistencia, calentándose, por lo tanto, si a través de una película de esta substancia hacemos circular la corriente eléctrica.
ES463713A1977-10-291977-10-29Sistema de caldeamiento mediante impregnacion de superficies.
ExpiredES463713A1
(es)