US PATENT SUBCLASS 400 / 161.4
.~.~.~.~.~ Including gear (e.g., rack) reciprocated by transmission mechanism

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}
160  DF  .~ Imprint by pivoting of type-head-carrier and type-head against record-medium {7}
161  DF  .~.~ Type-head-carrier movable on movable carriage {1}
161.1  DF  .~.~.~ Including selection of type-face (e.g., on "golf ball" type-head) {2}
161.2  DF  .~.~.~.~ Via gear train {2}
161.4.~.~.~.~.~ Including gear (e.g., rack) reciprocated by transmission mechanism

DEFINITION

Classification: 400/161.4

Including gear (e.g., rack) reciprocated by transmission mechanism:

(under subclass 161.2) Subject matter wherein said toothed member moves to-and-fro in a straight line and is driven by an assemblage of elements that converts movement of various kinds into the straight line movement of the toothed member.