Sheet printd information obliterating device

Details Sheet printd information obliterating device Sheet printd information obliterating device

1993-03-03

1997-09-09

Lee, Shuk Yin

Electrophotography

Document handling

Original

283902, 358401, G03G 2104

Patent

active

056661916

ABSTRACT:
A device for obliterating printed information on a sheet utilizes an information concealing printing unit for printing an information concealing pattern over a surface of a sheet carrying printed information. On printing the information concealing pattern over the surface of the sheet carrying the printed information, the printed information becomes unreadable. Various types of printing devices may be used and the printed information which is obliterated may be first recorded in electronic format for later retrieval.

REFERENCES:
patent: 4573409 (1986-03-01), Clar et al.
patent: 4786941 (1988-11-01), Regan
patent: 4980719 (1990-12-01), Allen et al.
patent: 5095816 (1992-03-01), Hasegawa et al.
patent: 5163088 (1992-11-01), LoCascio
patent: 5303070 (1994-04-01), Christ
patent: 5465160 (1995-11-01), Kamo et al.

Affiliated with

Also associated with

Rating

Sheet printd information obliterating device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sheet printd information obliterating device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet printd information obliterating device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-73252