US PATENT SUBCLASS 400 / 506
.~ With means to prevent creep (e.g., relative movement) between record-media

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

497  DF  WITH CONTROL OF "CARBON PAPER" FOR TYPING PLURAL SIMULTANEOUS COPIES BY SINGLE IMPRESSION (E.G., ON "MANIFOLD SET") {10}
506.~ With means to prevent creep (e.g., relative movement) between record-media

DEFINITION

Classification: 400/506

With means to prevent creep (e.g., relative movement) between record-media:

(under subclass 497) Subject matter wherein significance is

attributed to means in the typewriter for ensuring that a record-medium* piece for a carbon copy will be fed through the typewriter at the platen* at exactly the same feed rate as a record-medium piece for an original copy.