IPC Subgroup
A61K 6/16 Refractive index
Introduced: January 2020
Full Title
Preparations for dentistry > Compositions characterised by their physical properties > Refractive index
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES