US Patent 2,080,100 Gustav Tauschek, Priority date August 2, 1932, subsequent filed as
German Patent DE643803, "Elektromagnetischer Speicher für Zahlen und andere Angaben, besonders für Buchführungseinrichtungen" (Electromagnetic memory for numbers and other information, especially for accounting institutions)
doi.org
Campbell-Kelly, Martin (April 1982). "The Development of Computer Programming in Britain (1945 to 1955)". IEEE Annals of the History of Computing. 4 (2): 121–139. doi:10.1109/MAHC.1982.10016. S2CID14861159.
dpma.de
depatisnet.dpma.de
US Patent 2,080,100 Gustav Tauschek, Priority date August 2, 1932, subsequent filed as
German Patent DE643803, "Elektromagnetischer Speicher für Zahlen und andere Angaben, besonders für Buchführungseinrichtungen" (Electromagnetic memory for numbers and other information, especially for accounting institutions)
Campbell-Kelly, Martin (April 1982). "The Development of Computer Programming in Britain (1945 to 1955)". IEEE Annals of the History of Computing. 4 (2): 121–139. doi:10.1109/MAHC.1982.10016. S2CID14861159.
