Plural color anti-copying systems for xerographic and...

Details Plural color anti-copying systems for xerographic and... Plural color anti-copying systems for xerographic and...

B - Operations, Transporting

42

D

283/20

B42D 15/00 (2006.01) G03G 13/01 (2006.01)

Patent

CA 1166668

ABSTRACT OF DISCLOSURE An anti-copying system or method of coloring an original document with pre-selected background and image colors which, in combination, inhibit or prevent intelligi- ble reproduction on xerographic and electrostatic copying machines.

374874

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