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Individual
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Priority to ES1877005644ApriorityCriticalpatent/ES5644H1/es
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ES1877005644A1877-04-251877-04-25Aparato carburador destinado a la fabricacion del gas de alumbrado por medio de aceites minerales
ExpiredES5644H1
(es)
Un procedimiento para el enriquecimiento de los aceites minerales ligeros u otros hidrocarburos ligeros de cualquier origen por medio de aceite minerales pesados u otros hidrocarburos pesados.