G. D. Searle

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1952

A contraceptive tablet of phosphorated hesperedin was produced by G. D. Searle 's laboratories in Chicago.

Trager, James. The Women’s Chronology: A Year-by-Year Record, from Prehistory to the Present. Henry Holt, 1994.

549

Williams, Neville. Chronology of the Modern World: 1763 to the Present Time. David McKay, 1967.

629

August 1953

Scientist Gregory Pincus , working for G. D. Searle , patented a compound very similar to synthetic oestrogen (first made in Syntex labs nearly two years before) and set about using it, as Syntex had...

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