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Friedrich Johannsen

Inventor

Friedrich Johannsen

September 17, 1897Born

May 5, 1983Died

GermanyCitizenship

university teacherOccupation

Facts

Born: September 17, 1897
Died: May 5, 1983
Citizenship: Germany
Occupation: university teacher

Sources: Wikidata (CC0) · Wikidata Q105087676