Improvements in and relating to duplicating or manifolding books

摘要

535,565. Duplicating-books. LAMSON PARAGON SUPPLY CO., Ltd., and ISHERWOOD, V. W. May 2, 1940, No. 7897. [Class 16] A duplicating-book consists of paper strips 3 bound at one edge A, each strip being scored to provide two originals and two duplicates, each original with its duplicate being torn out as a pair, the book having a carbon sheet 8 extending over a part only of the book. Each strip is scored at 4 ... 7 and is folded at 6 and, when in use, is also folded zig-zag at 5, 7, the carbon sheet being used first with one pair of records and then with the remaining pair of the strip. Printed matter on the originals is applied on the same side of each strip.