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Place California--Fullerton Remove constraint Place: California--Fullerton Date Unknown Remove constraint Date: Unknown

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  1. Black finished cylindrical casing with three copper electrodes in a line next to product inscription; nickel knob is raised above the cylinder; outer dial goes from 0-15 (but only three digits are visible through its…

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    Exterior view of Beckman Instruments' Fullerton plant. In 1954, Beckman's headquarters moved from Pasadena to Fullerton.

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    In 1954, Beckman Instruments' headquarters moved from Pasadena to Fullerton.

    Most photographs are unattributed; several have image numbers or production notes written on the reverse.

    • Bulletin 419
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    Instruction manual for an instrument designed to record levels of oxidants in the atmosphere. Measuring oxidants is one way to quantify air pollution. Photochemical oxidants are air pollutants which form when air…