Method of forming copy resistant documents by forming an orderly

Details Method of forming copy resistant documents by forming an orderly Method of forming copy resistant documents by forming an orderly

1975-03-27

1977-05-24

Cannon, J.C.

Stock material or miscellaneous articles

Article having latent image or transformation

40137, 283 6, 283 7, 355133, 427197, 427198, 427203, 427264, 427289, 428 91, 428 96, 428141, 428163, 428167, 428168, 428173, 428204, 428207, 428323, B32B 3300, B42D 1500, B44F 100, D06C 1100

Patent

active

040256731

ABSTRACT:
Methods for treating or producing original documents to inhibit, if not preclude, the reproduction of such documents by copying processes. The documents so produced favor the visual response of the human eye over the physical response of a copying machine so that the graphical information imprinted on the document background is readily perceptible by the human eye but imperceptible by the sensor and associated processes of a copying machine.

REFERENCES:
patent: 824860 (1906-07-01), Grove
patent: 1651248 (1927-01-01), Bouin
patent: 3653138 (1972-04-01), Cooper
patent: 3750316 (1973-08-01), Braunhut
patent: 3878631 (1975-04-01), Mileham
patent: 3887742 (1975-06-01), Reinnagel

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