Participants at the Main Assembly of the Association held in Thessaloniki, on June 11. and 12th 1918.

Solemn session of UETS Assembly on the occasion of jubilee 1868-1944-1974.

Participants at the solemn session of UETS Assembly on the occasion of 130. anniversary of engineering - technicians `organization in Serbia (1998.)

Working session of Assembly on the occasion of 138. anniversary of UETS work and existence (on February 03. 2006.)