US PATENT SUBCLASS 400 / 695
.~ Means for correcting typing errors (e.g., by abrasive eraser, etc.)

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

679  DF  MEANS AUXILIARY TO TYPEWRITING FUNCTION {12}
695.~ Means for correcting typing errors (e.g., by abrasive eraser, etc.) {5}
696  DF  .~.~> By laser beam or adhesive-surface ribbon or chemical eradicator
697  DF  .~.~> By overprinting (e.g, with coated material) to cancel error {1}
698  DF  .~.~> With erasing table
699  DF  .~.~> With receptacle for refuse
700  DF  .~.~> With means for rubbing eraser over surface of record-medium

DEFINITION

Classification: 400/695

Means for correcting typing errors (e.g., by abrasive eraser, etc.):

(under subclass 679) Subject matter wherein significance is attributed to the removal of a mistake that may have been produced in the typed text and the rectification of the mistake to produce a correctly typed text.

(1) Note. In this subclass an abrasive eraser is usually the correcting means.