US PATENT SUBCLASS 400 / 120.06
.~.~.~ Sequentially

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

118.2  DF  TYPING BY OTHER THAN TYPE-FACE OR TYPE-DIE {3}
120.01  DF  .~ Thermal {7}
120.05  DF  .~.~ Block driving {1}
120.06.~.~.~ Sequentially

DEFINITION

Classification: 400/120.06

Sequentially:

(under subclass 120.05) Subject matter in which at least two of the sections are energized alternately.