US PATENT SUBCLASS 400 / 331
.~.~.~.~ Including plural ratchet 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}
319  DF  .~ Carriage-feed mechanism (e.g., escapement, etc.) {14}
329  DF  .~.~ Carriage escapement controlled by pawl {5}
330  DF  .~.~.~ Via ratchet wheel connected to pinion and carriage-rack {5}
331.~.~.~.~ Including plural ratchet wheels

DEFINITION

Classification: 400/331

Including plural ratchet wheels:

(under subclass 330) Subject matter wherein the regulating mechanism includes more than one ratchet* that is in the form of a rotatable disc or wheel.