TREA

for geometry, trigonometry, projection or perspective

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Industry

  • CPC
  • G09B23/04
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Parent Industries

GPHYSICS G09Cryptography, education, displays G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE MODELS PLANETARIA GLOBES MAPS DIAGRAMS G09B23/00Models for scientific, medical, or mathematical purposes

Current Industry

G09B23/04for geometry, trigonometry, projection or perspective
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