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Creator Gruttner, Ingbert Remove constraint Creator: Gruttner, Ingbert

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    • 1980s

    Some photographs are inscribed with details regarding dates and the occasion for the photograph.

    Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began a…

    • 1985-Apr-12

    This photograph is tucked into an album of other photographs taken at the university, most of which lack detailed description.

    The Beckmans and William O. Baker, posed in front of a painting, taken on the occasion of a…