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Format Text Remove constraint Format: Text Date 1945 to 1949 Remove constraint Date: <span class='from'>1945</span> to <span class='to'>1949</span>

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    • 1946 – 1955

    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…

    • 1948 – 1954

    Advertising brochure for Ac'cent, a pure mono sodium glutamate (MSG) food additive product manufactured by the Amino Products Division of the International Minerals & Chemical Corporation.

    • 1949-Dec

    Newsletter issued by the Vanadium Corporation of America with articles entitled "Uranium in the Colorado Plateau Area," "Bus Springs: Wellsprings of Good Will," "The Vanadium Minerals — Part II — Mineral Sources of…

    • 1940s

    This advertisement for the Model G pH meter highlights the different electrodes that could be used with it. The Model G was Beckman Instruments's first commercial pH meter.

    Arnold Beckman invented his first pH meter in…

    • Bulletin 206
    • circa 1949

    The Pocket Dosimeter was designed to be a portable radiation monitoring system, carried by people to protect themselves against gamma and x-ray exposure.

    • 1949-Mar-17

    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…

    • 1949-Sep-22

    Concerns submission of a manuscript to Mulliken for review, and results of Shull's latest work on quantum theory.

    • 1949-Oct-18

    Contains suggestions from Mulliken to Shull for changes in one of Shull's manuscripts.

    • 1949-Jan-05

    Concerns Robert B. Woodward's synthesis of methochloride of sempervirine. Also discusses an error made by Julian in the lab and communicated to Witkop in an earlier letter.

    • 1949-Nov-11

    Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists.

    • 1949-Dec-05

    Letter between Robert S. Mulliken and Harrison Shull, American quantum chemists.

    • Bulletin 206-B
    • 1949-Jul-12

    The ultraviolet Model B was marketed as an easier to use and more affordable alternative to the Beckman DU Spectrophotometer.

    The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company…

    • 1949-Nov

    The ultraviolet Model B was marketed as an easier to use and more affordable alternative to the Beckman DU Spectrophotometer.

    The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company…

    • Bulletin 69-B
    • 1949-Dec

    Glass electrodes were used in Beckman pH meters and various other instruments.

    • 1949

    Owners of the Model G would have found these instructions tucked inside the lid of the wooden case surrounding the instrument.

    Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the…

    • 1949-Mar-08

    Patent #2,463,743 for a hydrogen tube designed by H. Howard Cary and Warren Baxter during their time at National Technical Labs, a precursor to Beckman Instruments. This tube was designed for use in UV…

    • 1940s

    Print advertisement for a range of insecticides and fungicides manufactured by the Dow Chemical Company, including "MIKE" Sulfur, DN-Dry Mix, and App-L-Set. The advertisement also includes tips for best spraying results.

    • Dwg. No. 662-000740
    • 1949-Feb-08

    Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…

    • 1949-May

    This paper describes the use of an older style of glass prism in a new spectrophotometer made by Beckman Instruments. This new spectrophotometer would become the Model B, the glass prism making it a cheaper alternative…

    • 1949

    Advertisement for "RADA," or rosin-amine-D-acetate, a water soluble chemical manufactured by the Hercules Powder Company for use as a corrosion inhibitor and to control bacteria in water flooding systems, among other…

    • 1949

    Advertisement extolling the benefits of pine wood derivatives manufactured by the Hercules Powder Company for use in a variety of chemical products and processes, including textile chemicals, disinfectants,…