US PATENT SUBCLASS 400 / 306.4
.~.~.~.~.~ And multiple wheels

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

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
303  DF  .~ For varying carriage feed {3}
306  DF  .~.~ Proportional to variable widths of imprinted characters {4}
306.2  DF  .~.~.~ By ratchet-wheel and controlled pawl {1}
306.3  DF  .~.~.~.~ Including multiple pawls {1}
306.4.~.~.~.~.~ And multiple wheels

DEFINITION

Classification: 400/306.4

And multiple wheels:

(under subclass 306.3) Subject matter wherein the drive means is also provided with a plurality of ratchet wheels.