| 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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| 12/04/1979 | US4176499 Drill sharpener |
| 11/13/1979 | US4173846 Orbital saw sharpening device |
| 10/30/1979 | US4172343 Ice skate sharpener |
| 10/09/1979 | US4170091 Apparatus for resharpening cutting blades for gear cutting machine |
| 09/11/1979 | CA1062211A1 Sharpening device |
| 08/21/1979 | CA1060659A1 Ice skate sharpener |
| 08/14/1979 | US4164100 Device for grinding spiral drills |
| 08/07/1979 | US4163345 Arrangement for the grinding of rotary profile cutters |
| 07/31/1979 | US4162593 Tool holder for preparation and inspection of a radiused edge cutting tool |
| 07/11/1979 | EP0002947A1 Shaping diamond compacts |
| 04/10/1979 | US4148158 Lawn mower blade grinder |
| 03/20/1979 | US4144678 Method for resharpening cutting blades for gear cutting machinery |
| 03/13/1979 | CA1050275A1 Ice-skate sharpener |
| 03/06/1979 | US4142332 Drill grinding fixture |
| 03/06/1979 | US4142331 Blade sharpeners |
| 03/06/1979 | CA1049789A1 Drill grinding device |
| 02/06/1979 | CA1047769A1 Twist drill sharpener and components thereof |
| 01/30/1979 | US4136489 Grinding and polishing machine |
| 01/23/1979 | CA1046775A1 Spade drill sharpening fixture |
| 01/23/1979 | CA1046774A1 Knife sharpener |
| 01/16/1979 | US4134235 One chuck grinding apparatus for end milling cutters and the like |
| 01/10/1979 | EP0000289A1 Apparatus and method for precision grinding of cutting blades |
| 01/09/1979 | US4133233 Programmed method and apparatus for cutting sheet material with a sharpenable blade |
| 12/19/1978 | CA1044465A1 Knife sharpener |
| 11/28/1978 | US4126967 Devices for use in re-sharpening fluted cutting tools and the like |
| 11/21/1978 | CA1042668A1 Sharpener for commodity slicing machine |
| 11/14/1978 | CA1042212A1 Knife sharpening machine with abrasive belt |
| 10/31/1978 | US4122603 Processes for treating cutting edges |
| 10/31/1978 | US4122602 Processes for treating cutting edges |
| 10/24/1978 | US4121387 Blasting machine |
| 10/17/1978 | CA1040431A1 Apparatus for sharpening blades mounted on drums |
| 10/03/1978 | US4117748 Knife scabbard and sharpening device |
| 09/26/1978 | US4115956 Programmably controlled machine for grinding end cutting tools and the like |
| 09/26/1978 | CA1039067A1 Parking meter |
| 09/19/1978 | CA1038628A1 Knife sharpener |
| 08/29/1978 | US4109421 Method for grinding thread cutting tools |
| 08/29/1978 | US4109419 Ice skate sharpening devices |
| 08/15/1978 | US4106242 Workhead for an automatic bur grinding machine |
| 06/13/1978 | US4094101 Ice-skate sharpener |
| 06/06/1978 | US4093247 Chuck |
| 06/06/1978 | US4092805 Apparatus for sharpening microtome blades |
| 05/30/1978 | US4091574 Tool sharpening fixture for a grinding tool |
| 04/25/1978 | US4085547 Skate sharpener |
| 04/18/1978 | US4084353 Spade drill sharpening fixture |
| 04/18/1978 | US4084349 Shape grinder and method |
| 03/14/1978 | US4078337 Apparatus for sharpening ice skate blades and the like |
| 02/28/1978 | US4075790 Screw thread tap grinding with automatic loading means |
| 01/24/1978 | US4069620 Ice skate sharpener |
| 01/24/1978 | US4069619 Resurfacing device for screwdrivers and like tools |
| 01/03/1978 | US4065880 Sharpener for cut-off having a helical knife |
| 12/27/1977 | US4064657 Machine for machining spiral cutting edges on cutting tools |
| 11/29/1977 | US4059928 Drill grinding attachment |
| 10/11/1977 | US4052821 Automatic bur grinding machine |
| 10/04/1977 | US4052174 Apparatus for sharpening blade edges |
| 09/27/1977 | US4050199 Method of grinding a toothed cutter for hair-cutting apparatus |
| 09/20/1977 | US4048760 Scissors sharpener |
| 08/23/1977 | US4043082 Knife sharpening machine with an abrasive belt |
| 08/16/1977 | US4041651 Knife sharpener |
| 07/05/1977 | US4033214 Blade sharpener |
| 06/28/1977 | US4031672 Sharpen twist drills or the like |
| 06/28/1977 | US4031670 Adjustable sharpener for self-sharpening feed chopping knives |
| 05/31/1977 | US4026073 Tool grinding machine |
| 05/24/1977 | US4025319 Knife sharpener |
| 05/17/1977 | US4023552 Method of dressing the grinding wheel in a sharpener for twist drills |
| 04/26/1977 | US4019287 Spiral knife sharpener |
| 04/26/1977 | US4019286 Hone for involute knife |
| 04/12/1977 | US4016685 Sharpener for twist drills equipped with a chuck and drill bit locator |
| 04/12/1977 | US4016680 Sharpener for twist drills including grinding wheel dressing means |
| 03/15/1977 | US4011689 Grinding machine |
| 03/08/1977 | US4010576 Apparatus for rebeveling spiral knives |
| 03/01/1977 | US4009637 Milling device |
| 02/01/1977 | US4005554 Blade sharpening device for rotatable chopping cylinders |
| 02/01/1977 | US4005553 Clamping device for use in sharpening shears and the like |
| 01/11/1977 | US4001975 Twist drill sharpener and aligning fixture |
| 12/21/1976 | US3998307 Parking meter |
| 12/14/1976 | US3996818 Lawn mower and garden tool sharpener |
| 11/30/1976 | US3994099 Screw thread tap grinding |
| 11/23/1976 | US3993116 Rasp sharpener |
| 11/16/1976 | US3991525 Apparatus for sharpening blades mounted on drums |
| 11/16/1976 | US3991522 Apparatus for sharpening rotary blades |
| 10/26/1976 | US3988124 Skate sharpening machine |
| 10/19/1976 | US3986304 Sharpener for commodity slicing machine |
| 09/07/1976 | US3979076 Grinding wheel guide means for forage harvester |
| 08/17/1976 | US3974727 Rotary knife, assembly and machine for processing a product |
| 06/22/1976 | US3964209 Semiautomatic diamond tool-grinding machine |
| 06/15/1976 | US3963183 Resharpenable recutter screen for forage harvester |
| 06/08/1976 | US3961450 Twist drill sharpening apparatus |
| 06/08/1976 | US3961449 Grinding machine for household use |
| 05/25/1976 | US3958766 Cutterhead rotating mechanism for forage harvester |
| 05/18/1976 | US3956948 Sharpening machine for root-cutter knives |
| 05/18/1976 | US3956857 Ice skate blade sharpening machine |
| 04/27/1976 | US3952616 Adjustable grinding apparatus |
| 04/27/1976 | US3952615 Saw chain sharpening system |
| 04/27/1976 | US3952459 Drill grinder |
| 04/27/1976 | US3952456 Grinding machine |
| 04/20/1976 | US3950899 Blade holder for use when sharpening |
| 03/02/1976 | US3940889 Method for sharpening rotary blades |
| 01/20/1976 | US3932964 Multi-angle grinding fixture |
| 01/06/1976 | US3930342 Sharpener for twist drills |