US PATENT SUBCLASS 400 / 331.1
.~.~.~.~ Including particular structure of ratchet 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}
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}
331.1.~.~.~.~ Including particular structure of ratchet wheel

DEFINITION

Classification: 400/331.1

Including particular structure of ratchet wheel:

(under subclass 330) Subject matter wherein significance is attributed to the construction of the rotatable ratchet* disc or ratchet wheel.