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Application filed by Franz TrinksfiledCriticalFranz Trinks
Publication of CH62170ApublicationCriticalpatent/CH62170A/de
CH62170A1912-11-261912-11-26Rechenmaschine mit mehreren nebeneinanderliegenden Einstellwerken, die Antriebsräder mit einstellbarer Zähnezahl besitzen
CH62170A
(de)