TREA

displaying different signs depending upon the view-point of the observer

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Industry

  • CPC
  • G09F19/14
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Parent Industries

GPHYSICS G09Cryptography, education, displays G09FDISPLAYING ADVERTISING SIGNS LABELS OR NAME-PLATES SEALS G09F19/00Miscellaneous advertising or display means not provided for elsewhere

Current Industry

G09F19/14displaying different signs depending upon the view-point of the observer
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