US PATENT SUBCLASS 283 / 902
ANTI-PHOTOCOPY


Current as of: June, 1999
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283 /   HD   PRINTED MATTER

902ANTI-PHOTOCOPY


DEFINITION

Classification: 283/902

ANTI-PHOTOCOPY:

Cross-reference art collection drawn to printed matter provided with means or structure preventing a portion of the printed matter from being reproduced by a photosensitive process.