of spirally or helically wound bodies

Full Title

Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; Filtering elements therefor > Edge filtering elements, i.e. using contiguous impervious surfaces > of spirally or helically wound bodies

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Subclass:

SEPARATION