US PATENT SUBCLASS 400 / 499
.~ On record-medium wound around platen together with carbon paper

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}
499.~ On record-medium wound around platen together with carbon paper

DEFINITION

Classification: 400/499

On record-medium wound around platen together with carbon paper:

(under subclass 497) Subject matter wherein one record-medium* for said original copy, and at least one record-medium for said carbon copy, and at least one of said carbon papers is interleaved as a manifold set, and said manifold set is coiled around the platen* in plural convolutions as typing on the record-medium progresses.

(1) Note. In some of the disclosures of this subclass the carbon paper is attached to the platen.