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DK263979A1979-06-221979-06-22Fremgangsmaade ved anbringelse af varmeisolationsmateriale i hulrum og roer til brug ved udoevelse af fremgangsmaaden
DK146968C
(da)
Procedimento per staccare le estremita'dei tubi collegati mediante rullatura con piastre a tubi,in particolare di scambiatori di calore,dalle pareti dei relativi fori,nonche'dispositivo per realizzare il procedimento