This oxygen electrode was first used inside Beckman Instruments pH meters and later in many other instruments.
|Original file type||TIFF|
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Solesbee, B. “Platinum Oxygen Electrode Assembly Drawing,” April 22, 1957. Beckman Historical Collection, Box 19, Folder 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/x059c810g.
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