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Individual
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Individual
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Priority to ES16897ApriorityCriticalpatent/ES16897A1/en
Publication of ES16897A1publicationCriticalpatent/ES16897A1/en
ES16897A1895-01-221895-01-22
An aero-hydraulic device to purify and cool the air in rooms, also applicable to the preservation of food substances.
ExpiredES16897A1
(en)