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    The industrial model pH meters had features designed specifically for industrial (as opposed to laboratory) environments, like the Model W's rubber gaskets to prevent corrosive gases or dust from entering the…

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    An ammeter is used to measure the electric current flowing through the circuit. This instrument is distinct from those which measure voltage, like a voltmeter.

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    The facility in this photograph is not identified or dated, but Beckman Instruments established its first South Africa subsidiary in 1963 and soon had locations in Cape Town, Durban, and Johannesburg.

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    This building housed the Information Display Operations wing of Beckman Instruments.

  1. Postcard image is of Albert Edelfelt's "Pasteur Dans Son Laboratoire" [Pasteur In His Laboratory]. Semipostal stamp depicts Louis Pasteur. Stamp includes surtax for the relief of unemployed intellectuals. A semipostal…

  2. Arnold Beckman and unidentified individuals at various award dinners.

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    Arnold Beckman and two unidentified men, smiling over unidentified hardware.

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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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    Wallace H. Coulter (1913-1998) enumerated the Coulter Principle for counting and sizing particles suspended in a fluid. He patented the Coulter Counter for blood cell analysis in 1953.

    Joseph R. Coulter, Jr.…

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    Joseph Coulter, Jr., Laura Coulter-Jones, Wallace Coulter, and Joseph Coulter III pose for a family portrait.

    Wallace and Joseph Coulter founded the Coulter Corporation to market Coulter Counters, instruments for blood…

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    Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…

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    The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…

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    A group of eleven men, standing and crouching indoors in front of various pieces of unidentified scientific equipment.

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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,…

  3. A series of photographs depicting the future site of the Helipot Division's Newport Beach plant and the building's appearance in the mid-1950s.

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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,…

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