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ES2211A1882-02-151882-02-15Un procedimiento para tratar ciertos gases o vapores destinados a usos industriales, por medio de un aparato especial.
ExpiredES2211A1
(es)
Un aparato destinado para la producción del gas-rico, por medio de la descomposición por el calor de los aceites esquistosos, residuos de petróleo o cualquiera sustancia aceitosa.
Un procedimiento para soldar cajas de conservas y otras, haciendo innecesario el empleo de obreros especiales, por medio de un motor de gas o de vapor.