B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
B42D9/00—Bookmarkers; Spot indicators; Devices for holding books open; Leaf turners
B42D9/04—Leaf turners
B42D9/08—Leaf turners having radial arms, one per leaf, operated successively
B42D9/086—Leaf turners having radial arms, one per leaf, operated successively actuated by a spring for each arm
Landscapes
Tables And Desks Characterized By Structural Shape
(AREA)