

Niederländische Bakteriologin und Hochschullehrerin
Anna Charlotte Ruys (* 21. December 1898 in Dedemsvaart; † 8. February 1977 in Amsterdam) was a niederländische Bakteriologin und Hochschullehrerin. She was 78 years old. She was married to August Defresne. She studied at University of Amsterdam. She worked at University of Amsterdam.