US PATENT SUBCLASS 400 / 154.5
.~.~.~.~ Via stepping motor responsive to selection

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

139  DF  INCLUDING TYPE-SET-ASSEMBLAGE MOUNTED ON CARRIER AND RELATIVELY MOVABLE FOR SELECTION AND FOR IMPACT OF TYPE-FACE {11}
153  DF  .~ Imprint by movement of record-medium against type-face {3}
154  DF  .~.~ By hammer impacting record-medium against type-face on type-head (e.g., type shuttle, etc.) {3}
154.1  DF  .~.~.~ Including selection of type-face {8}
154.5.~.~.~.~ Via stepping motor responsive to selection

DEFINITION

Classification: 400/154.5

Via stepping motor responsive to selection:

(under subclass 154.1) Subject matter wherein said selecting mechanism includes an electric motor that rotates incrementally, the rotation being caused by the selection or choice of a type-face* and the motor being connected to a type-head* that supports the type-face elements.