"Dehomag was a German subsidiary of IBM with monopoly in the German market before and during World War II. The word was an acronym for Deutsche ...
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Hollerith-Maschinen Gesellschaft mbH (English: German Hollerith Machines LLC). Hollerith refers to the German-American inventor of the technology of punched cards, Herman Hollerith. In April 1949 the company name was changed to IBM Deutschland." - (en.wikipedia.org 30.01.2020)