 During his studies, he participated in the association Székely Egyetemi és Foiskolai Hallgatók 
Egyesülete (SZEFHE, Association of Students of the Sikuly University and Institutions of Higher Learning), where he became acquainted with the movements of the Habsburgellenes Liga (Anti-Habsburg League) and the Association of Bartha Miklós (BARTHA Miklós Társaság)
When Charles IV wanted to retake the Hungarian throne in 1921, the young people took up arms at the call of the Association of Students of the Sikuly University and Institutions of Higher Learning and awaited battle at Kelenföld, but without adequate ammunition.Against the modern German machine gun Szathmari received not one cartridge.From 1924 to 1957 he worked as an engineer at the Hungarian State Wagonworks (Hungarian acronym