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Application filed by Karl KremannfiledCriticalKarl Kremann
Application grantedgrantedCritical
Publication of AT173128BpublicationCriticalpatent/AT173128B/de
AT173128D1950-10-271950-10-13Verfahren zur Durchführung von Durchschreibe-Buchhaltungsarbeiten auf Schreibmaschinen usw. und zugehörige Hilfsmittel
AT173128B
(de)