US PATENT SUBCLASS 283 / 106
.~ By folded portion

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

72  DF  HAVING REVEALABLE CONCEALED INFORMATION, FRAUD PREVENTER OR DETECTOR, USE PREVENTER OR DETECTOR, OR IDENTIFIER {15}
106.~ By folded portion

DEFINITION

Classification: 283/106

By folded portion:

(under subclass 72) Subject matter wherein the information if made readable or understandable or the larceny prevention or signalling occurs by the use of a portion of the printed matter that has been bent over or doubled unto itself.