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6 hours ago · The letter F. A stylized bird with an open mouth, tweeting. The word "in". ... The company was founded by Charles Pfizer Sr. and Charles Erhart in 1849 and is headquartered in New York, NY.
German businessman
Charles F. Erhart (born Karl Erhart; 25 September 1821–1891) was a Kingdom of Württemberg-born businessman who co-founded the American pharmaceutical company Chas. Pfizer & Co. Inc... Wikipedia