Any machine, apparatus, tool or process is classified in this class in so far as it produces an effect or mark meant to be judged by the eye and in so far as such machine, apparatus, tool or process is not provided for elsewhere. [4]
PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES (surface treatment in general, see the relevant places, e.g. applying liquids or other fluent materials Fulltext... Hierarchy... Expanded...B05) [2]
B44D 2/00
Special techniques in artistic painting or drawing, e.g. oil painting, water painting, pastel painting, relief painting [2]