Description
Class B42B : PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES, OR SIGNATURES, OR PERMANENTLY ATTACHING OBJECTS THERETO
Subclass 9/02: Devices common to machines for carrying out the processes according to more than one of main groups B42B 2/00-B42B 7/00 (auxiliary equipment in making paper articles B31F; auxiliary equipment in printing machines B41; conveyers in general B65G) for opening quires or signatures