IPC Subgroup
G09B 23/02 for mathematics
Introduced: September 1968
Last revised: January 2006
Full Title
Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes > for mathematics
Classification Context
- Section:
- PHYSICS
- Class:
- EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- Subclass:
- EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
1 direct subcode
Child Classifications
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- G09B 23/04 for geometry, trigonometry, projection, or perspective