US PATENT SUBCLASS 400 / 115
.~ Powered Actuated

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

112  DF  ANNULAR TYPEWRITER (E.G., FOR TYPING AROUND CIRCUMFERENCE OF PLATEN) {3}
115.~ Powered Actuated

DEFINITION

Classification: 400/115

Power actuated:

(under subclass 112) Subject matter wherein one or more mechanisms of the typewriter is/are driven with the help of energy derived from a source other than the energy of the typist.