TREA

Preventing copies being made of an original

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Industry

  • CPC
  • G03G21/04
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Parent Industries

GPHYSICS G03Photography G03GELECTROGRAPHY ELECTROPHOTOGRAPHY MAGNETOGRAPHY G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00

Current Industry

G03G21/04Preventing copies being made of an original
Industries