| Patents for B42F 13 - Filing appliances with means for engaging perforations or slots (4,768) |
|---|
| 07/22/1980 | US4213520 Artists' portfolio |
| 06/25/1980 | EP0012196A1 Device for transferring a stack of printed matter from the posts of a filing binder or the like onto a bundling member |
| 06/17/1980 | US4208146 Suspension device for ring binders |
| 06/11/1980 | EP0011819A1 Binder member |
| 05/20/1980 | CA1077795A1 Loose leaf binder |
| 05/14/1980 | EP0010898A1 Improvements in or relating to the binding of loose leaves, periodicals and the like |
| 05/13/1980 | US4202642 Loose-leaf binder utilizing stiff covers |
| 05/06/1980 | US4201492 Loose leaf binder lock and operating member therefore |
| 04/29/1980 | US4200404 Loose leaf binders |
| 04/02/1980 | EP0009440A1 Binders for sheets with flexible binding parts and retaining slide |
| 03/18/1980 | US4193704 Fastener for wire bound media |
| 03/11/1980 | US4192620 Loose leaf binder |
| 03/11/1980 | CA1073305A1 Snap fastener type loose-leaf folder |
| 03/06/1980 | WO1980000329A1 Device for holding flip cards |
| 03/04/1980 | US4191484 Document files |
| 02/26/1980 | US4190374 Loose-leaf binder |
| 01/29/1980 | US4185934 Filler cradle for looseleaf ringbinders |
| 12/25/1979 | US4180340 Binder post connection |
| 11/27/1979 | US4175880 Device for interlocking perforated writing material |
| 11/27/1979 | US4175340 Form book |
| 11/20/1979 | US4174910 Paper clip and binder device |
| 11/20/1979 | US4174909 Loose leaf binder |
| 10/30/1979 | US4172675 Binding mechanism for loose-leaf binder |
| 10/23/1979 | US4171854 Document holder |
| 10/09/1979 | US4170423 System for the housing and display of plane data carriers |
| 09/25/1979 | US4168920 Binder |
| 08/28/1979 | CA1061215A1 Extensible paper fastening device |
| 08/21/1979 | US4165193 Loose-leaf folder |
| 06/12/1979 | US4157757 Composite cover-support for electronic equipment and instructional materials |
| 06/12/1979 | CA1056250A1 Suspension file hanger hook assembly |
| 02/27/1979 | CA1049362A1 Loose leaf binder with integral strap |
| 02/20/1979 | CA1048885A1 Clamping mechanism for a document file |
| 01/30/1979 | US4136981 Loose leaf binder with flexible telescopic post assemblies and magnetically retained bar |
| 01/23/1979 | US4135832 Binder and apparatus for retaining leaves therein |
| 12/19/1978 | US4130368 Plastic looseleaf binder ring assembly |
| 12/12/1978 | US4129396 Loose leaf binder with rigid telescopic post assemblies and magnetically retained bar |
| 11/28/1978 | US4127340 Movable hinge binder |
| 11/21/1978 | US4126402 Binder with magazine storage |
| 11/07/1978 | US4124261 Data storage unit |
| 10/24/1978 | US4121892 Holder for loose filing sheets |
| 09/12/1978 | US4113394 Removable binding device |
| 09/05/1978 | CA1037813A1 Unitary fastening device for loose leaf binder |
| 08/15/1978 | CA1036453A1 Filing device for perforated documents |
| 08/08/1978 | US4105182 Multiple use study device |
| 04/18/1978 | US4084911 Laminated sheet of vinyl resin with polyester reinforcing layer |
| 01/31/1978 | US4070736 Fastening device |
| 11/29/1977 | US4060330 Loose leaf binder locking device |
| 11/01/1977 | US4056326 Loose leaf binder |
| 08/02/1977 | US4038768 Viewer storing microfiche file binder |
| 04/26/1977 | US4019823 Ring binder |
| 04/05/1977 | US4015863 Easel binder |
| 03/08/1977 | US4011018 Loose leaf binder |
| 02/08/1977 | US4006992 File |
| 02/01/1977 | USRE29127 Visible index systems |
| 01/04/1977 | US4000951 Loose leaf binders |
| 12/07/1976 | US3995961 Ring binder |
| 11/30/1976 | US3994606 Loose leaf page fastener |
| 11/23/1976 | US3993374 Filling device for papers |
| 08/31/1976 | US3977799 Filing device for papers |
| 08/17/1976 | US3975105 Sheet lifter with punches for looseleaf book |
| 08/03/1976 | US3972632 Expandable book cover |
| 05/25/1976 | US3958886 Looseleaf binder mechanism |
| 05/04/1976 | US3954343 Plastic looseleaf binder ring assembly |
| 04/13/1976 | US3950107 Binder ring |
| 04/13/1976 | US3950048 Carrying and support handle for binders |
| 03/16/1976 | US3944374 Loose leaf binder |
| 03/16/1976 | US3944373 Perforator |
| 02/03/1976 | US3936202 Ring binder |