US PATENT SUBCLASS 400 / 6
.~.~.~ With error-correcting storage register

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

1  DF  INCLUDING JUSTIFICATION OR QUADDING OF PRINT-LINE {6}
3  DF  .~ By programmed-control-system {1}
4  DF  .~.~ On auxiliary-record-program (e.g., tape, card, etc.) {3}
6.~.~.~ With error-correcting storage register

DEFINITION

Classification: 400/6

With error-correcting storage register:

(under subclass 4) Subject matter wherein the

programmed-control-system* includes a "memory" circuit and means for amending or modifying the program in the event that a typist has made a mistake in the typed text or in the justification thereof so that the text may be retyped with the mistake rectified.

SEE OR SEARCH THIS CLASS, SUBCLASS:

74, for error detection and correction of a program for selection of type-face* elements.