Means Auxiliary To Typewriting Function Patents (Class 400/679)
- By tilting typewriter (e.g., via collapsible legs, etc.) (Class 400/681)
- By moving key-board relative to frame (e.g., into plural operating positions, etc.) (Class 400/682)
- By moving carriage relative to frame (Class 400/683)
- By moving type-bars relative to frame (Class 400/684)
- Including typewriter built into carrying case (Class 400/685)
- By laser beam or adhesive-surface ribbon or chemical eradicator (Class 400/696)
- By overprinting (e.g, with coated material) to cancel error (Class 400/697)
- With erasing table (Class 400/698)
- With receptacle for refuse (Class 400/699)
- With means for rubbing eraser over surface of record-medium (Class 400/700)
- For indicating typist's skill or needed adjustment (Class 400/704)
- For indicating position of carriage along print-line (Class 400/705)
- For indicating position of line or end-of-page (Class 400/706)
- For aligning record-medium with print-point or print-line (e.g., for facilitating correction of error, etc.) (Class 400/709)
- Including a page counter (Class 400/710)
- Including a light (Class 400/711)
- Including means producing an audible sound (e.g., plural tones, etc.) (Class 400/712)
