US PATENT SUBCLASS 400 / 138.3
.~.~.~.~ Actuated by key-board control


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}
138.2  DF  .~.~.~ On rotatable carrier (e.g., for scarifying elements, etc.) {3}
138.3.~.~.~.~ Actuated by key-board control


DEFINITION

Classification: 400/138.3

Actuated by key-board control:

(under subclass 138.2) Subject matter wherein the type-die* element that is to be impressed against the record-medium* is selected by pressing a corresponding key* element located on a key-board*, the pressing of which key causes selection of a type-die and movement of the selected type-die to the print-point*.