US PATENT SUBCLASS 400 / 240.2
.~.~.~ With prevention of bleeding between adjacent fields

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}
237  DF  .~ Ribbon, per se {4}
240  DF  .~.~ Including differently pigmented fields {4}
240.2.~.~.~ With prevention of bleeding between adjacent fields

DEFINITION

Classification: 400/240.2

With prevention of bleeding between adjacent fields:

(under subclass 240) Subject matter wherein significance is attributed to a manner of impeding the migration of the coloring agent from one zone to another zone next to it.