Johann Zwelfer From Wikipedia, the free encyclopedia German chemist, pharmacist, and physician (1618–1668) Johann Zwelfer (1618–1668) was a German chemist, pharmacist and physician. Herrn Johann Zwölfern Königliche Apotheck Oder Dispensatorium. Endter, Nürnberg 1692 Digital edition by the University and State Library Düsseldorf External links Media related to Johann Zwelfer at Wikimedia Commons Authority control databases InternationalISNIVIAFGNDNationalUnited StatesItalyCzech RepublicPortugalNetherlandsIsraelBelgiumPeopleDeutsche BiographieDDBOtherIdRefOpen LibraryYale LUX This article about a German chemist is a stub. You can help Wikipedia by adding missing information.vte This article about a German person in the field of medicine is a stub. You can help Wikipedia by adding missing information.vte Related Articles