US PATENT SUBCLASS 400 / 138.1
.~.~.~ Electrically powered

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

135  DF  TYPING TO PRODUCE PIERCED CHARACTER {2}
137  DF  .~ Check-protection character {1}
138  DF  .~.~ By type-die mounted on carrier movable for selection of character {2}
138.1.~.~.~ Electrically powered

DEFINITION

Classification: 400/138.1

Electrically powered:

(under subclass 138) Subject matter wherein electricity is used to energize selection of type-die* or operation of a function* of the typewriter.