by heating

Full Title

Pipe-line systems > for liquids or viscous products > Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity > by heating

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

STORING OR DISTRIBUTING GASES OR LIQUIDS

Subclass:

PIPE-LINE SYSTEMS; PIPE-LINES