Printing – Antismut device – Anti-offset material application
Patent
1982-12-02
1986-03-04
Burr, Edgar S.
Printing
Antismut device
Anti-offset material application
283901, 428919, 101219, B42D 1500
Patent
active
045734097
ABSTRACT:
In a method of rendering subject matter which is printed on one surface of a computer paper sheet unintelligible, an alpha-numeric interference pattern is printed over substantially the entire printing area of the surface of the sheet carrying the printed subject matter, the density of the interference pattern being sufficient to render the printed subject matter unintelligible. One particular use of the method is in the overprinting of computer print-out paper having printed information on one surface, so that the paper may be reused by printing on its opposite surface without permitting access to the information on the first-printed surface. A machine is disclosed for this application of the method.
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Chaplin, O. F.; "Paper Forms Feed Roller Drive"; IBM Technical Disclosure Bulletin; vol. 14; No. 3; p. 922; Aug. 1971.
Booth Barclay
Clar Milton
Burr Edgar S.
Paper Inc.
Wiecking David A.
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