US PATENT SUBCLASS 400 / 679
MEANS AUXILIARY TO TYPEWRITING FUNCTION

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

679MEANS AUXILIARY TO TYPEWRITING FUNCTION {12}
680  DF  .~> Means for collapsing typewriter or support for record-medium or copy {5}
686  DF  .~> Buffer (e.g., dashpot, of particular material, etc.) for movable typewriter element {1}
688  DF  .~> Means for increasing typewriter noise
689  DF  .~> Means for muffling typewriter noise {1}
691  DF  .~> Frame, casing, or support for typewriter {3}
695  DF  .~> Means for correcting typing errors (e.g., by abrasive eraser, etc.) {5}
701  DF  .~> Means for cleaning, or facilitating cleaning of, type-face {1}
703  DF  .~> Indicator means {7}
713  DF  .~> Attachment for shielding or screening record-medium or typewriter (e.g., against wind, etc.) {1}
715  DF  .~> Attachment for guiding fingers or hands of typist (e.g., hand rest)
716  DF  .~> Attachment for illuminating or viewing (e.g., prism, etc.)
717  DF  .~> Attachment for holding an article (e.g., pencil, eraser, etc.) {1}

DEFINITION

Classification: 400/679

MEANS AUXILIARY TO TYPEWRITING FUNCTION:

(under the class definition) Subject matter wherein significance is attributed to structure that is part of a typewriter to aid a typist in using a typewriter, or significance is attributed to a device used in conjunction with a typewriter, which device is connected to, or may be disconnected from, a typewriter, and which device is used by a typist in the operation of a typewriter, but which structure or device does not itself effect the imprint of a character*, a character-space* or word-space*, or a function* of the typewriter.

(1) Note. This subclass and the subclasses indented hereunder provide for structure that facilitates use of a typewriter for typing, which structure is not provided for elsewhere in this class (400). It is emphasized, however, that a patent to be properly placed herein should claim a subcombination that is in a typewriter rather than claim a subcombination by itself.