| Patents for B42F 3 - Sheets temporarily attached together involving perforations; Means therefor; Sheet details therefor (1,632) |
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| 01/24/1984 | US4427315 Device for the removal of paper from binders |
| 01/03/1984 | CA1159864A1 Device for the removal of paper from binders |
| 12/06/1983 | CA1158206A1 Tape fixing device |
| 08/10/1983 | EP0085547A1 Fasteners |
| 01/25/1983 | US4370185 Tape fixing device |
| 12/21/1982 | US4364737 Method for connecting together a plurality of webs of flexible material |
| 12/08/1982 | EP0066469A1 File reinforcements |
| 10/19/1982 | US4354890 Method of producing reinforced paper |
| 07/27/1982 | US4341401 Method and apparatus for covering books |
| 02/17/1982 | EP0045742A1 Fastener for wire bound media |
| 09/15/1981 | US4289565 Apparatus for punching holes in paper-like sheets and for simultaneously providing reinforcing members therefor |
| 09/09/1981 | EP0035149A1 Assembly of sheets joined together by a fastening element |
| 09/03/1981 | WO1981002410A1 Fastener for wire bound media |
| 09/02/1981 | EP0034779A1 Device for removing sheets from binders |
| 08/25/1981 | US4285531 Reinforcement for computer printout sheets |
| 06/23/1981 | US4274906 Apparatus for automatically applying reinforcing tabs to loose-leaf sheets |
| 05/12/1981 | CA1100840A1 Loose leaf binder with rigid telescopic post assemblies and magnetically retained bar |
| 01/13/1981 | US4244085 Pin for documents |
| 12/30/1980 | US4241477 Paper clip |
| 09/17/1980 | EP0015717A1 Apparatus for connecting together a plurality of webs of flexible material |
| 09/04/1980 | WO1980001778A1 Apparatus for connecting together a plurality of webs of flexible material |
| 06/10/1980 | CA1079321A2 Formed information folder pad |
| 05/13/1980 | US4202122 Self-supporting unitary plate for holding photographic slides |
| 03/18/1980 | US4193704 Fastener for wire bound media |
| 04/17/1979 | US4149738 Tamper-proof page assembly |
| 01/30/1979 | US4137289 Method of making a spiral binder |
| 11/28/1978 | US4127690 Filing strip |
| 10/17/1978 | US4120517 Removable plastic binding |
| 08/29/1978 | US4109348 Safety clips |
| 06/06/1978 | US4093387 Fastener for detachably interconnecting punched documents |
| 02/15/1977 | US4008305 Plastic |
| 02/01/1977 | USRE29127 Visible index systems |