B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
B42B5/00—Permanently attaching together sheets, quires or signatures otherwise than by stitching
B42B5/08—Permanently attaching together sheets, quires or signatures otherwise than by stitching by finger, claw or ring-like elements passing through the sheets, quires or signatures
Zange zum Binden von Briefblättern, Papierbogen und dergleichen, mit Hilfe von aus einem Bandstück bestehenden, offenen Ringen, deren Enden in Umfangsrichtung einen Abstand voneinander aufweisen.