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    • 1967

    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,…

    • 1967

    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,…

    • Undated

    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.…

    • Undated

    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.