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    The KF-4 Aquameter was included in the new product show at the Pittsburgh Conference in March 1970.

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    It is possible that J. H. Maddocks is the man in the photograph, as opposed to the photographer.

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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.

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    Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began a long career manufacturing scientific and medical instruments with National Technical Laboratories,…

    • Instructions No. 91
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    This undated draft is handwritten and hand-drawn on yellow paper.

    The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by…

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    Joseph R. Coulter, Jr. (1924-1995) co-founded Coulter Corporation with his brother, Wallace, in the 1950s. The company was acquired by Beckman Instruments in 1997.

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    Beckman acquired a manufacturer of direct-writing oscillographs and electroencephalographs, Offner Electronics, in 1961. Beckman’s EEG product line was sold in 1984.

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    The exterior views (2012-002_1155 and 2012-002_1156) are the work of Interstate Photographers; the others are unattributed.

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    The first image is unattributed; the others are the work of Interstate Photographers.

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    Beckman Instruments Italiana S.p.a. was formed in Milan in 1970.

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    Beckman Instruments (Ireland) Inc. was established in Galway in 1971.

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    The set of photographs depicts Beckman facilities in France. Some photographs are numbered on the reverse; some are mounted.

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    This selection of photographs depicts Arnold and Mabel Beckman at their home and attending various events. Some are dated, and all appear to fall into the period between the 1940s and 1985, when the couple was presented…

    • 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…

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    One photograph depicts Arnold and Mabel Beckman standing outside, posing for a photograph with their children, Arnold and Patricia. One depicts Arnold and Mabel Beckman with their son, Arnold Jr., his wife, and three…

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    The black and white images are attributed to Ross Scholes Photography and depict men and women working in the Toronto plant. The unattributed Kodak print of a white building depicts the exterior of the Mississauga…

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    This instrument measures the air/fuel ratio in automobile engines. This ratio can be used to determine the amount of energy and pollutants produced by combustion.

  1. The MicroCoder IIA was marketed for use with Minimum Inhibitory Concentration (MIC) panels for pneumonia, influenza, and meningitis.

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    Multimeters are instruments capable of making multiple measurements, typically voltage, current, and resistance.