US PATENT SUBCLASS 400 / 234
.~.~ Including ribbon tensioner

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

191  DF  INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15}
223  DF  .~ Ribbon-feeding mechanism {13}
234.~.~ Including ribbon tensioner

DEFINITION

Classification: 400/234

Including ribbon tensioner:

(under subclass 223) Subject matter wherein significance is attributed to means for maintaining the ribbon* in a relatively taut or non-sagging condition as the ribbon is moved relative to the print-point*.