|  | B |
SECTION B — PERFORMING OPERATIONS

PRINTING

|  | B42 |
BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER

|  | B42B |
PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES, OR SIGNATURES, OR PERMANENTLY ATTACHING OBJECTS THERETO (stapling apparatus Fulltext... Hierarchy... Expanded...B25C; machines for both collating or gathering and permanently attaching together sheets or signatures Fulltext... Hierarchy... Expanded...B42C 1/12; temporarily attaching sheets together Fulltext... Hierarchy... Expanded...B42F)

|  | B42C |
BOOKBINDING (cutting or perforating machines, devices, or tools Fulltext... Hierarchy... Expanded...B26; folding sheets or webs Fulltext... Hierarchy... Expanded...B31F, Fulltext... Hierarchy... Expanded...B65H; ornamenting books Fulltext... Hierarchy... Expanded...B44)

|  | B42D |
BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH; MOVABLE-STRIP WRITING OR READING APPARATUS (book stands Fulltext... Hierarchy... Expanded...A47B; reading desks Fulltext... Hierarchy... Expanded...A47B 19/00; book rests Fulltext... Hierarchy... Expanded...A47B 23/00)

|  | B42F |
SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING (reading desks Fulltext... Hierarchy... Expanded...A47B 19/00; book rests Fulltext... Hierarchy... Expanded...A47B 23/00)

|  | B42F |
Note(s) The words "filing appliance" in this sub-class mean holders for collections of papers, sheets, cards, or units thereof, each paper, sheet, card, or unit being individually insertable and extractable. These words may thus include a calendar, an instruction manual, or a letter file.