US PATENT SUBCLASS 400 / 210
.~ For boldface typing

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}
210.~ For boldface typing

DEFINITION

Classification: 400/210

For boldface typing:

(under subclass 191) Subject matter wherein significance is attributed to imprinting character* symbols formed of lines having greater than normal thickness.

SEE OR SEARCH THIS CLASS, SUBCLASS:

304, for varying carriage feed to accomplish a similar result.

466, for a type-face* configuration which accomplishes a similar result.