Search within the Beckman Historical Collection
- 1960 – 1962
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,…
Some of the portraits bear a photographer's stamp or more specific date (occasionally contradicting other prints of the same photograph).
Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful…