using magnetically consolidated grinding powder, moved relatively to the workpiece under the influence of pressure

Full Title

Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor (abrasive blasting machines B24C3/26) > involving other means for tumbling of work > using magnetically consolidated grinding powder, moved relatively to the workpiece under the influence of pressure