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Emmett Chappelle

Emmett Chappelle
Invention:

Emmett W. Chappelle is a scientist who made valuable contributions in several fields: medicine, philanthropy, food science, and astrochemistry. From 1950 to 1955 he served as an instructor of biochemistry at Meharry Medical College in Nashville, Tennessee. From 1955 to 1959, he was a research associate at Stanford University.... https://en.wikipedia.org/wiki/Emmett_Chappelle

Alexander Alexander Miles Alfred Alfred L. Cralle Andrew Andrew Beard Annie Annie Malone Augustus Augustus Jackson Benjamin Benjamin Banneker
Benjamin Benjamin Bradley Bessie Bessie Blount David David Crosthwait Dr. Dr. Carter G. Woodson Dr. Dr. Charles Drew Dr. Dr. Daniel H. Williams
Dr. Dr. James E. West Dr. Dr. Shirley Jackson Dr. Dr. Vivien T. Thomas Earl Earl Lucas Elijah Elijah McCoy Emmett Emmett Chappelle
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