| Patents for B24B 3 - Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools (4,999) |
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| 11/25/1987 | EP0246426A2 Method of manufacturing profile knives for a cutter-head of a processing machine, especially of a moulder |
| 11/24/1987 | US4707947 Sharpening stone for use with a sabre or jig saw |
| 11/19/1987 | WO1987006868A1 Automatic ski tuning device |
| 11/12/1987 | DE3616239C1 Machine tool for the grinding of cutting tools |
| 11/10/1987 | US4704824 Punch tool grinder and method |
| 11/10/1987 | CA1228987A1 Grinding machine |
| 11/03/1987 | US4703588 Drill cutting edge grinder |
| 11/03/1987 | CA1228731A1 Small-sized drill grinding machine |
| 10/31/1987 | CN86209557U Sliding gauge for drill sharpening |
| 10/28/1987 | EP0243048A1 Knife sharpeners |
| 10/28/1987 | EP0242464A1 Sharpening device for forage harvesters |
| 10/21/1987 | EP0241645A1 Improved blade sharpening and guide mechanism |
| 09/22/1987 | US4694613 Relief grinding of lawn mower cylindrical blades |
| 09/08/1987 | US4691479 Machine and process for cutting chipping-grooves into elongated peripheral milling cutters with hemispherical tips |
| 09/02/1987 | EP0234396A2 Drill sharpening device |
| 08/27/1987 | WO1987004962A1 Sharpening apparatus |
| 08/06/1987 | DE3603237A1 Device for the mechanical centring of indexable inserts |
| 07/14/1987 | US4679356 For filing the bottom edge of a ski |
| 07/02/1987 | DE3604274C1 Device for resharpening knives (cutters) with arcuately curved cutting edges |
| 06/16/1987 | US4672776 Circular blade sharpening device |
| 06/16/1987 | EP0225806A2 Tool holder |
| 06/11/1987 | DE3641660A1 Apparatus for the automatic manipulation of working devices |
| 06/11/1987 | DE3532012A1 Drill sharpener |
| 06/09/1987 | US4671021 Diamond abrasives for titanium nitride cutting tools |
| 06/02/1987 | US4669337 Knife sharpener |
| 05/27/1987 | DE3622490C1 Grinding inner cones of drill and milling cutter tools - uses band grinder with drive and driven rollers, with grinding carried out at contact region |
| 05/14/1987 | DE3629992C1 Tool grinding machine |
| 05/12/1987 | US4663891 Method of machining a workpiece with an edge-type rotary cutting tool |
| 05/12/1987 | US4663849 Combination can opener/knife sharpener with pivotal mounting |
| 05/06/1987 | EP0220375A2 Grinding head for a machine for sharpening helically-fluted cutting tools |
| 04/21/1987 | US4658549 Drill bit sharpening device |
| 04/14/1987 | US4656786 Punch tool grinder and method |
| 03/31/1987 | US4653232 Apparatus for sharpening a plurality of tools |
| 03/26/1987 | DE3619245A1 Twist drill |
| 03/18/1987 | EP0214943A2 Grinding jig for knives |
| 03/10/1987 | US4648209 Small-sized drill grinding machine |
| 03/03/1987 | US4646474 Drill grinder |
| 02/17/1987 | US4643061 Rotary blade sheet material cutter with sharpener |
| 02/17/1987 | US4642942 Method and apparatus for grinding the tip of a twist drill |
| 02/03/1987 | US4640059 Apparatus for grinding the knives in tobacco cutting machines |
| 01/28/1987 | EP0209634A2 Method for shaping a work piece |
| 01/27/1987 | US4638603 Device for sharpening single-flute countersinks |
| 01/13/1987 | US4635406 Apparatus for stripping fish line from a spool and sharpening fish hooks |
| 01/13/1987 | US4635402 Knife abrasive apparatus for rotary drum shaped cutter |
| 01/07/1987 | EP0207741A2 Drill bit sharpening device |
| 12/23/1986 | US4630409 Device for finishing the edges of skis |
| 12/23/1986 | US4630406 Method of using an elliptical form to generate a perfect radius in an insulated electrical conductor stripping blade |
| 12/17/1986 | CN85104797A Apparatus for grinding twist drills |
| 12/17/1986 | CN85104793A Apparatus for grinding twist drills |
| 12/16/1986 | US4628642 Device for sharpening circular knives |
| 12/09/1986 | US4627194 Method and apparatus for knife and blade sharpening |
| 12/03/1986 | EP0203173A1 Blade point sharpener |
| 11/26/1986 | EP0202913A2 Dual purpose grinding machine |
| 11/25/1986 | US4624081 Turn-around mechanism for workpieces in grinding machines |
| 11/20/1986 | EP0201789A2 Device for sharpening drill bits |
| 11/18/1986 | US4623285 Cutting tip for rotary machining, a tool fitted with such tips and a process for sharpening such tips |
| 11/11/1986 | US4621456 Grinding machine for mowing machine cylinder blades |
| 10/28/1986 | US4619079 Grinding machine for ball end mills with helical cutter teeth |
| 10/21/1986 | US4617763 Belt driven knife sharpener |
| 10/08/1986 | EP0196491A2 Device for sharpening curved knives that are essentially circular concave |
| 10/08/1986 | CN85103038A Compound abrasive grinding wheel for grinding titanium alloy |
| 10/07/1986 | US4615144 Portable skate sharpener |
| 09/24/1986 | CN86101840A Spiral cutter working apparatus |
| 09/23/1986 | US4612731 Grinding machine |
| 09/17/1986 | CN85102709A New technology of the variable k milling and grinding for gear hobs |
| 09/03/1986 | CN85108827A Grinding machine of drill cutting edges |
| 09/02/1986 | US4608782 Method and apparatus for sharpening razor blades |
| 08/26/1986 | US4607463 Adjustment means for a drill bit sharpening device |
| 08/26/1986 | US4607462 Cooling and lubricating device for sharpening feed chopping knives |
| 08/26/1986 | US4607459 Combined hollow grinder, sharpener and honer |
| 08/20/1986 | CN85202477U Screw tap-machining device |
| 08/20/1986 | CN85100128A Cutting tool for extra-hard, difficult machined material, its sharpening and usage |
| 08/19/1986 | US4606152 Method of polishing metal reed blades of air jet loom and apparatus therefor |
| 08/05/1986 | US4603513 Motor driven feed sharpener |
| 07/29/1986 | US4602531 Process and apparatus for sharpening of knives |
| 07/02/1986 | EP0186432A2 Drill cutting edge grinder |
| 07/01/1986 | US4597226 Apparatus for sharpening end mills |
| 07/01/1986 | US4597178 Saw chain sharpener |
| 06/05/1986 | WO1986003154A1 Blade point sharpener |
| 06/04/1986 | EP0182954A1 Device for sharpening points, reamers and threading-parts |
| 06/03/1986 | US4592171 Paper drill bit sharpener |
| 05/27/1986 | US4590711 Semi-automatic grinding machine |
| 05/13/1986 | US4587767 Apparatus for grinding |
| 04/30/1986 | EP0179404A2 Grinding tool |
| 04/15/1986 | US4581969 Ultramicrotome diamond knife |
| 04/15/1986 | US4581856 Apparatus for high tooth equalization of cutters |
| 03/26/1986 | EP0175168A2 Method and apparatus for grinding the slide surface of skates |
| 03/18/1986 | US4575969 Grinding machine for punching tools |
| 03/18/1986 | EP0103573A4 Method and apparatus for regrinding step drills. |
| 03/12/1986 | EP0174107A2 Portable skate sharpener |
| 03/11/1986 | US4574529 Apparatus for grinding twist drills |
| 03/11/1986 | US4574528 Apparatus for grinding twist drills |
| 02/04/1986 | US4567693 Microtome knife sharpening instrument |
| 01/28/1986 | US4566227 Auxiliary device for re-grinding of spiral drills |
| 01/08/1986 | EP0167330A2 Ultramicrotome diamond tool |
| 01/07/1986 | CA1198896A1 Portable skate sharpener |
| 12/10/1985 | US4557074 Method and apparatus for grinding undulate cutting edges of knives in tobacco cutting machines |
| 12/04/1985 | EP0163469A2 Drill point grinding machine |
| 11/13/1985 | EP0161090A2 A grinding device |
| 10/22/1985 | US4548000 Method for producing threaded sections of threading tools |