CPC Subgroup
G03C 11/06 Smoothing; Renovating; Roughening; Matting; Cleaning; Lubricating; Flame-retardant treatments
Full Title
Auxiliary processes in photography (characterised by the apparatus used G03D15/00) > Smoothing; Renovating; Roughening; Matting; Cleaning; Lubricating; Flame-retardant treatments