72442933
Dec 6, 1972
Aug 20, 1974
INSULATING MATERIAL FOR DENTAL PURPOSES-NAMELY, FOR PLASTER MODELS FOR USE IN THE MANUFACTURE OF PROSTHESES MADE OF PLASTIC MATERIALS, TOOTH ENAMELS, IMPRESSION MATERIAL FOR DENTAL PURPOSES, PLASTICS AS MODEL MATERIAL FOR DENTAL PURPOSES, TOOTH-FILLING AGENTS
Medical, Beauty & Agricultural