Image: "Pureairin" Patent Ventilator
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Description: "Pureairin" Patent Ventilator. Made in all sizes. Pureairin Patent Ventilator Company, 639 June Street, Cincinnati, Ohio, US.
Title: "Pureairin" Patent Ventilator
Credit: Cleveland Engineering Society (1906) The Ohio Architect and Builder (Public domain ed.), Cleveland Engineering Society, p. 83
Author: Cleveland Engineering Society
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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