US PATENT SUBCLASS 400 / 89
KEY REASSIGNMENT
Current as of: June, 1999
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DEFINITION
Classification: 400/89
KEY REASSIGNMENT:
(under the class definition) Subject matter which changes the relationship between the key designation and the printed
character.
(1) Note. The term key designation includes either a change in actuated printing element or key designator (e.g., mask or overlay).
SEE OR SEARCH CLASS
380, Cryptography,
51, and 55 for a cryptos:graphic typewriter.
