US PATENT SUBCLASS 400 / 311
.~.~ Including pawl and escapement wheel

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

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
308  DF  .~ Carriage backspace mechanism {4}
311.~.~ Including pawl and escapement wheel

DEFINITION

Classification: 400/311

Including pawl and escapement wheel:

(under subclass 308) Subject matter wherein the carriage* is caused to be moved by the actuation of a key* element that moves a pawl* that interengages with one of the teeth of a toothed wheel to drive the carriage in a backspace direction.