| Patents for B42F 13 - Filing appliances with means for engaging perforations or slots (4,768) |
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| 07/10/1990 | CA1271388A1 Filing device for layers of sheets |
| 07/04/1990 | EP0375925A2 Container for storing objects |
| 06/28/1990 | DE3844167A1 File |
| 06/20/1990 | EP0374124A2 Closing mechanism for binders of perforated sheets |
| 06/14/1990 | WO1990006236A1 Document support stand and lockable actuating keeper |
| 06/12/1990 | US4932804 Loose leaf retainer for file folders |
| 06/06/1990 | EP0371860A2 Lever mechanism or the like for ring binding, and the binder itself |
| 06/05/1990 | US4930927 Tamper-proof binder for photographs and the like |
| 06/05/1990 | US4930926 Binder for removable leaves |
| 06/05/1990 | US4930925 Loose-leaf notebook construction |
| 05/31/1990 | WO1990005644A1 Loose leaf retainer for file folders |
| 05/31/1990 | WO1990005472A1 Multi-positionable document support stand and interlocking modular document holder |
| 05/29/1990 | US4929117 Mechanism for detacheably fitting a male fixing member and a female engaging member |
| 05/15/1990 | US4925328 For storing sheets of paper |
| 05/15/1990 | US4925146 Multi-positionable document support stand and interlocking modular document holder |
| 05/15/1990 | US4925145 Document support stand and securable interlocking document holder with locking document retainer |
| 05/15/1990 | CA1269010A1 Book binding method, paper sheets binder and adjustable spine |
| 04/24/1990 | US4919557 Looseleaf binder with sliding lock mechanism |
| 04/19/1990 | WO1990003891A1 Coil-bound notebook |
| 04/10/1990 | US4915522 Video tape log device |
| 04/10/1990 | CA1267580A1 Arrangement for holding and filing documents, papers and the like |
| 03/20/1990 | US4909652 Storage device |
| 03/13/1990 | US4907905 Coil-bound notebook |
| 03/13/1990 | US4907904 Notebook with selectively changeable, removeable and replaceable information carriers |
| 03/08/1990 | WO1990002051A1 Ring binder |
| 03/07/1990 | EP0356604A1 Filing appliance |
| 02/27/1990 | US4904103 Loose-leaf binder |
| 02/27/1990 | US4904102 Base plate for a loose-leaf holder |
| 02/27/1990 | CA1266176A1 Book spine label |
| 02/14/1990 | EP0354768A2 A binder assembly |
| 02/08/1990 | WO1990000981A1 Holder for filing devices |
| 01/30/1990 | CA1265017A1 File |
| 01/10/1990 | EP0349614A1 Trigger mechanism for ring binder |
| 01/09/1990 | US4892333 Window pocket insertion device and method of use therefor |
| 01/04/1990 | DE3920991A1 Apparatus for fixing a stack of sheets perforated at their edges, or individual sheets, in rapid-action binders or index folders |
| 12/20/1989 | EP0346583A2 Pressure bar for ring binder mechanisms |
| 12/19/1989 | US4887925 Prong and tang binding system |
| 12/14/1989 | DE3820274A1 Ring-binder, folder, document file or the like with a loop for inserting a writing instrument |
| 12/12/1989 | US4886390 Loose leaf binder |
| 11/28/1989 | US4883381 Book |
| 11/14/1989 | US4880327 Gravity lock bookstand and binder |
| 11/07/1989 | US4878693 Sheet material carrier |
| 10/24/1989 | US4875793 Notebook binder/label holder |
| 09/26/1989 | US4869613 Combined sheet compressor and transfer device for attachment to spaced prongs of a file folder fastener |
| 09/20/1989 | EP0332804A2 Fast binder |
| 09/12/1989 | US4865483 Containing antistatic and/or conductive agent blended into pol ymer |
| 09/12/1989 | CA1259240A1 Ring binder mechanism |
| 08/30/1989 | CN2043555U Convenient filing appliance with serial plate |
| 08/24/1989 | WO1989007531A1 Accessory holder for ring binder |
| 08/23/1989 | EP0328846A2 Container for filing sheets removed in a block from a loose-leaf binder |
| 08/22/1989 | US4859275 Reinforcing piece pasting apparatus for binding hole |
| 08/22/1989 | CA1258608A1 Ring binder for punched sheeets of paper |
| 08/15/1989 | US4856926 Sheet binder |
| 08/15/1989 | US4856817 Easy grip binder |
| 08/08/1989 | US4854763 Device for the impaling of loose leaves |
| 08/01/1989 | US4852909 Storage receptacle adapted for facile content reference |
| 07/26/1989 | EP0324765A1 Binder. |
| 07/26/1989 | CN2041625U Twisted joint binding holder for slight book |
| 07/18/1989 | US4848948 Side binder notebook |
| 07/18/1989 | US4848798 Perforated interior binder pocket |
| 07/05/1989 | EP0322507A2 A holder for paper-keeping bags |
| 06/28/1989 | EP0321655A2 Cover for a binder |
| 06/27/1989 | US4842436 Chart organizer |
| 06/27/1989 | US4842434 Organizational aid for paper sheets, especially EDP paper sheets |
| 06/22/1989 | DE3741894A1 Ordner File |
| 06/15/1989 | WO1989005234A1 File |
| 06/13/1989 | US4838724 Binder with pencil pocket |
| 06/06/1989 | CA1255181A1 Folder system |
| 05/24/1989 | DE3737478A1 Information and lecture magazine |
| 05/23/1989 | US4832521 Closure mechanism for a loose-leaf holder |
| 05/23/1989 | US4832520 Book spine label |
| 05/16/1989 | US4830528 Closure mechanism for a loose-leaf holder |
| 05/09/1989 | US4828421 Personalized loose-leaf album cover |
| 05/03/1989 | EP0314664A2 Bottom plate for a ring binder |
| 05/03/1989 | EP0314304A2 Book spine label |
| 04/27/1989 | DE3735273A1 Wall covering book |
| 04/26/1989 | EP0312916A1 Ring binder mechanism |
| 04/18/1989 | US4822195 Multi-purpose album |
| 04/12/1989 | EP0311597A2 Filing appliance locking mechanism |
| 04/12/1989 | CN2035706U Magazine clamp |
| 04/11/1989 | US4820073 Document cartridge |
| 04/11/1989 | US4820072 Note-book |
| 04/11/1989 | US4820071 Accessory holder for ring binder |
| 04/06/1989 | WO1989002834A1 Trigger mechanism for ring binder |
| 03/28/1989 | US4815882 Turntable type binder assemblies |
| 03/21/1989 | US4813803 Trigger mechanism for ring binder |
| 03/09/1989 | WO1989001876A1 Ring binding mechanism |
| 03/08/1989 | EP0305383A1 Self-loading binder. |
| 03/07/1989 | US4810125 Ring mechanism |
| 02/28/1989 | US4807909 Prescription assembly |
| 02/28/1989 | US4807906 Computer paper binder |
| 02/23/1989 | WO1989001645A1 A storage and filing means for photographic films |
| 02/22/1989 | EP0304411A2 File folder |
| 02/22/1989 | EP0304247A2 Improvements in or relating to binder assemblies |
| 02/09/1989 | DE3813102C1 Document file |
| 02/07/1989 | US4802789 Combined punch and clip |
| 02/06/1989 | EP0305383A4 Self-loading binder. |
| 01/17/1989 | US4798491 Ring binder mechanism |
| 12/27/1988 | US4793633 Device for supporting bound material |
| 12/06/1988 | CA1246112A1 Binding strips for rectangular hole punched paper |