US PATENT SUBCLASS 400 / 310
.~.~ Including powered drive means

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}
310.~.~ Including powered drive means

DEFINITION

Classification: 400/310

Including powered drive means:

(under subclass 308) Subject matter wherein the carriage* is caused to be moved by way of energy supplied to the typewriter by other than the typist.

(1) Note. The typewriter of this subclass is powered by such energy as an electric motor, a solenoid, a continuously rotated power roll the power of which is intermittently applied, etc.