Maybe there is a family connection to compatriot Franz Wittmann, prominent electrical engineer and inventor of the Wittmann-oscilloscope.
Károly Güttler | Károly Várszegi | Károly Palotai | Károly Makk | Károly Lotz | Károly Kós | Károly Kisfaludy | Károly Hornig | Károly Ferenczy | Károly |