internally heated, e.g. by means of passages in the wall

Full Title

Rotary-drum furnaces, i.e. horizontal or slightly inclined > internally heated, e.g. by means of passages in the wall

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

FURNACES; KILNS, OVENS OR RETORTS

Subclass:

FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS