This Exhaust Analyzer became one of Beckman Instruments' products when the company acquired Liston-Becker in 1955. It detects pollutants in the exhaust from vehicles with combustion engines.
|Original file type||TIFF|
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Hay Photo Service. “Man in a Car with a Liston-Becker Model 28 Auto Exhaust Analyzer,” 1955. Beckman Historical Collection, Box 55, Folder 60. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/2514nk55f.
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