US PATENT SUBCLASS 400 / 201
.~.~ Of multicolor ribbon

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}
197  DF  .~ Renovation of used ribbon {5}
201.~.~ Of multicolor ribbon

DEFINITION

Classification: 400/201

Of multicolor ribbon:

(under subclass 197) Subject matter wherein the ribbon* which is treated has plural fields of differently pigmented or tinted ink* materials.