Spirometer, Gould/SRL SpiroScreen, 1987

Spirometer_SpiroScreen_Gould_SRL_1987

Originally manufactured by Chest Corporation of Japan and re-sold by SpectraMed, a division or subsidiary of Gould/SRL.  From Office Spirometry. A practical guide to the selection and use of spirometers.  By PL Enright and RE Hyatt.  Published by Lea and Febiger, 1987.  Page 113.

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