Wallace H. Coulter was an American electrical engineer, inventor, and businessman. He is best known for his discovery of the Coulter principle, which provided a methodology for counting, measuring and evaluating microscopic particles suspended in fluid. His invention of the Coulter Counter made possible today’s most common medical diagnostic test: the complete blood count (CBC). Wikipedia
The definitive Wikipedia entry for Wallace H. Coulter. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Wallace_H%2e_Coulter
