involving propulsion devices in which the mould material is supplied in the shape of a compacted column or the like

Full Title

Moulding machines for making moulds or cores, characterised by the compacting mechanism; Accessories therefor > Compacting by gas pressure or vacuum > involving propulsion devices in which the mould material is supplied in the shape of a compacted column or the like

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

CASTING; POWDER METALLURGY

Subclass:

FOUNDRY MOULDING