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ES133815A1934-03-031934-03-03Procedimiento para la obtención de grasa vegetal susceptible de ser utilizada en la fabricación de chocolate.
ExpiredES133815A1
(es)
Un procedimiento para la obtención de un aglomerado poroso de fibras vegetales y especialmente las de madera en cualquier forma aislante incombustible e imputrefacto.