Patent classifications
G
PHYSICS
Load children
G09
EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
Load children
G09B
EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
Load children
25/00
Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
Load children Filter patents View analytics View as hierarchy
G09B25/02
of industrial processes; of machinery
Load children Filter patents View analytics View as hierarchy