the cleaning devices being rotated while moved

Full Title

Cleaning hollow articles by methods or apparatus specially adapted thereto > Cleaning pipes or tubes or systems of pipes or tubes > Cleaning the internal surfaces; Removal of blockages > using cleaning devices introduced into and moved along the pipes > moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes > the cleaning devices being rotated while moved

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

CLEANING

Subclass:

CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL