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  1. Há 12 horas · Arnold Beckman, PhD 1928; inventor of the pH meter, founder of Beckman Instruments and financier of the first "silicon" company in Silicon Valley, Shockley Semiconductor Laboratory; National Medal of Technology and Innovation recipient; National Medal of Science recipient; David Beratan, PhD 1986; Rena Bizios, MS 1971; Richard D. Braatz, PhD 1993