US PATENT SUBCLASS 400 / 89
KEY REASSIGNMENT


Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

89KEY REASSIGNMENT {1}
90  DF  .~> Electrically powered


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.