US PATENT SUBCLASS 400 / 289.1
.~.~.~ Tab-stops grouped in stepped fashion

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

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
284  DF  .~ For stopping carriage in tabular position (e.g., column-set positions) {10}
289  DF  .~.~ Column set by control of tap-stops or column-stops or counter-stops {1}
289.1.~.~.~ Tab-stops grouped in stepped fashion

DEFINITION

Classification: 400/289.1

Tab-stops grouped in stepped fashion:

(under subclass 289) Subject matter wherein the "tab-stop" elements are arranged in sets or assemblages of tab stops on the tab-rack*, the individual tab stops of each set being in an ascending or descending scale of individually varying length in each assemblage, and each set or assemblage being arranged for a different "columnar" arrangement.