Vols. 20- have summaries in English, French, and/or German.
Formed by the union of various subject specialty subseries,published 1970-1974.
Continued by: Buletinul ştiinţific şi tehnic al Institutului Politehnic "Traian Vuia" Timişoara, divided into the following specialty subseries: Chimie, Electrotehnică, Constructii, Matematică-fizică and Mecanică.