US PATENT SUBCLASS 400 / 264
.~ For shifting platen

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

251  DF  CASE-SHIFT MECHANISM {14}
264.~ For shifting platen {3}
265  DF  .~.~> Fore-and-aft (e.g., for top-strike or bottom-strike typewriter)
266  DF  .~.~> Mounted on pivotally movable platen carrier {3}
267  DF  .~.~> By depression of space-bar

DEFINITION

Classification: 400/264

For shifting platen:

(under subclass 251) Subject matter wherein case-shift* is effected by moving the platen* relative to the typewriter, thereby moving the record-medium* relative to the type-face* element which will impact thereagainst.

SEE OR SEARCH THIS CLASS, SUBCLASS:

261, for case-shift by moving platen in a multiple-shift typewriter