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Application filed by Franz TrinksfiledCriticalFranz Trinks
Publication of CH57801ApublicationCriticalpatent/CH57801A/de
CH57801A1911-12-181911-12-18Rechenmaschine mit mehreren, nebeneinander liegenden Einstellwerken, die Antriebräder mit einstellbarer Zähnezahl besitzen
CH57801A
(de)