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Devices for Braille writing
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Industry
CPC
G09B21/02
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Parent Industries
G
PHYSICS
G09
Cryptography, education, displays
G09B
EDUCATIONAL OR DEMONSTRATION APPLIANCES APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE MODELS PLANETARIA GLOBES MAPS DIAGRAMS
G09B21/00
Teaching, or communicating with, the blind, deaf or mute
Current Industry
G09B21/02
Devices for Braille writing
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