1979 World's First Sensor for Measuring the Relative Acidity - Historic Images

SKU: KSB54773

1979 Press Photo World's First Sensor for Measuring the Relative Acidity

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$19.99
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High Temperature probe; The world's first practical sensor for measuring the relative acidity or alkalinity (pH0 of water at extremely high termperatu

Photo measures 8 x 10 inches.

Photo is dated: 10/19/1979

Photo back:

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