| Patents for B24B 21 - Machines or devices using grinding or polishing belts; Accessories therefor (4,476) |
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| 08/08/1989 | US4854084 Equipment for sanding the rounded corners of boards automatically |
| 08/02/1989 | EP0325801A1 Surface treatment method for a magnetic recording carrier |
| 07/25/1989 | US4850152 Apparatus for lapping and polishing optical surfaces |
| 07/13/1989 | WO1989006178A1 Superfinishing machine with lapping film |
| 07/11/1989 | US4845897 Grinding machine for grinding or rasping of rubber items |
| 07/05/1989 | EP0323329A1 System for mounting a tensioning drum for belts on a machine and machine equipped thereby |
| 07/05/1989 | EP0322613A2 Contact disc for supporting a rotation grinding belt |
| 06/27/1989 | US4842618 Method of producing magnetic disk |
| 06/27/1989 | US4841683 Roll grinding system |
| 06/21/1989 | CN2039611U Grinding machine for bare face of coil |
| 06/20/1989 | US4839994 Belt grinding machine |
| 06/13/1989 | US4837984 Wood surface treatment method and system employing tandemly oriented cross-belts and rotary abraders |
| 06/07/1989 | EP0318966A2 Machine for processing surfaces with a device for positioning work tools |
| 06/07/1989 | EP0318965A2 Flexible manufacturing plant |
| 05/30/1989 | US4833834 Camshaft belt grinder |
| 05/23/1989 | CA1254391A1 Belt sander apparatus |
| 05/18/1989 | DE3821837C1 Contact roller |
| 05/09/1989 | CA1253696A1 Abrading machine |
| 04/26/1989 | EP0312841A2 Profile sanding machine |
| 03/30/1989 | DE3731157A1 Tensioning and guiding device for the grinding belt of a belt-grinding machine |
| 03/01/1989 | EP0051657B1 Method for surface grinding |
| 03/01/1989 | CN2033320U Revolving-stage type plane sandbag grinder with press-grind plate structure |
| 02/08/1989 | CN2032113U Mechanic polishing machine for circular arc plane |
| 02/07/1989 | US4802309 Method and apparatus for lapping and polishing optical surfaces |
| 01/24/1989 | CA1249128A1 Self correcting belt tracking mechanism |
| 01/10/1989 | US4796387 Micro-abrasive finishing device |
| 01/04/1989 | CN2030131U Metallographic polisher |
| 12/08/1988 | DE3734175A1 Surface-working apparatus |
| 12/07/1988 | EP0293574A2 Belt grinding machine |
| 12/01/1988 | WO1988009241A1 Belt sanding machine |
| 12/01/1988 | DE3716832A1 Method for operating a belt-grinding machine, and belt-grinding machine |
| 11/30/1988 | EP0293353A1 Belt sanding machine |
| 11/30/1988 | EP0293341A2 Equipment for sanding the rounded corners of boards automatically |
| 10/25/1988 | US4779387 Method and apparatus for automatically buffing a golf ball |
| 10/25/1988 | US4779383 Device for machining the drying cylinders of a paper machine |
| 10/20/1988 | WO1988007912A1 Belt tracking adjustment means for belt type abrading machine |
| 10/13/1988 | DE3711278A1 Belt-grinding device for cleaning welding beads on sheet-metal components, in particular on vehicle bodies |
| 09/21/1988 | EP0283022A2 Floor preparation machine and method |
| 09/13/1988 | US4770215 Wood bar rounding machine with two or more cutting and sanding units |
| 09/06/1988 | US4768311 Method of removing unwanted material from a surface |
| 08/09/1988 | US4762534 Method of producing magnetic disk |
| 08/09/1988 | US4762005 Abrasive grinding belt test machine |
| 07/20/1988 | CN87216057U Multifunctional polishing-grinding machine |
| 07/13/1988 | EP0274367A1 Grinding machine for grinding or rasping of rubber items |
| 06/29/1988 | EP0272362A2 Method and apparatus for lapping or polishing optical surfaces |
| 06/29/1988 | CN87214216U Multi-functional abrasive-belt sand-light machine |
| 06/23/1988 | DE3642086A1 Grinding device |
| 06/14/1988 | US4750297 Grinding apparatus and method |
| 06/01/1988 | DE3640268A1 Method and apparatus for levelling out irregularities on steel plates |
| 05/31/1988 | US4747237 Method for manufacturing a finished turbine blade from a raw workpiece |
| 05/25/1988 | EP0268119A2 Belt polishing machine |
| 05/10/1988 | US4742650 Sanding machine |
| 05/10/1988 | US4742649 Belt tracking adjustment means for belt type abrading machine |
| 04/12/1988 | US4736475 Abrading machine for disk shaped surfaces |
| 03/29/1988 | US4733500 Wood surface treatment method and system employing tandemly oriented cross-belts and rotary abraders |
| 03/23/1988 | CN87200269U Hand polisher with inflating grinding wheel |
| 03/01/1988 | US4727683 Abrasive belt machine |
| 01/19/1988 | US4719721 Conveyor bed assembly and vacuum platen |
| 12/23/1987 | EP0249890A1 Sanding machine, in particular profile sanding machine |
| 12/17/1987 | DE3619849A1 Belt grinding machine |
| 09/22/1987 | US4694614 Multipurpose polisher |
| 09/09/1987 | EP0045794B1 Turbine blade tip finishing apparatus and method |
| 08/26/1987 | CN87100864A Method and apparatus for combination roll polishing |
| 08/18/1987 | US4686796 Method and apparatus for improved polishing of turbine blades |
| 07/28/1987 | US4682444 Microfinishing apparatus and method |
| 07/14/1987 | US4679354 Grinding machine for grinding or rasping of rubber items |
| 07/08/1987 | EP0227859A1 Grinding shoe for pressing a rotating grinding belt of a belt grinder against the work piece to be ground, and method of grinding plate-shaped material |
| 07/01/1987 | EP0052627B1 Abrasive grinding machine |
| 06/30/1987 | US4676029 Opposed endless belt grinding apparatus |
| 06/19/1987 | DE3544569A1 Reducing the outer diameter of centrifugal-pump impellers |
| 06/10/1987 | EP0225296A1 A wide belt smooth sander |
| 06/09/1987 | US4671018 Rigid disk finishing apparatus |
| 06/09/1987 | CA1222634A1 Kiln ring grinding apparatus |
| 06/03/1987 | CN86201800U Precision belt-type vibrating lapping and buffing machine |
| 06/02/1987 | US4669224 Vertical to horizontal adapter for a belt grinding machine |
| 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 |
| 05/21/1987 | DE3639264A1 Apparatus for the copy-grinding of cylindrical and spherical surfaces |
| 05/06/1987 | EP0056023B1 Self-centering feed mechanism for an abrasive grinding machine |
| 05/05/1987 | US4662121 Backing block for profile sanders |
| 05/05/1987 | US4662116 Grinding attachment |
| 04/23/1987 | WO1987002281A1 A device for machining the drying cylinders of a paper machine |
| 04/22/1987 | EP0219301A2 Improved microfinishing apparatus and method |
| 04/14/1987 | US4656790 Burnishing method and apparatus for magnetic disk |
| 03/24/1987 | US4651474 Wide belt sanding machine with platen oscillating means |
| 03/24/1987 | US4651473 Belt finisher |
| 03/24/1987 | US4651471 Edge-rounding method and apparatus therefor |
| 03/03/1987 | US4646475 Abrasive belt surface grinder and method |
| 02/17/1987 | US4642943 Belt abrading apparatus and method |
| 02/04/1987 | EP0210654A2 Belt grinding machine |
| 02/03/1987 | US4640056 Vertically self-centering feed assembly |
| 01/21/1987 | CN85102892A Polishing apparatus |
| 01/13/1987 | US4635405 Continuous arcuate feed assembly |
| 01/13/1987 | US4635403 Edge rounding machine |
| 01/02/1987 | DE3607818C1 Belt grinding machine for grinding bundles of tensile-test specimens |
| 12/16/1986 | US4628641 Belt sander with reducible overall dimension features |
| 12/16/1986 | US4628640 Belt sander apparatus |
| 11/11/1986 | US4621459 Segmented platen with diaphragm cylinder control |
| 09/10/1986 | EP0193665A1 Grinding apparatus |
| 08/20/1986 | EP0191072A1 Process and device for supporting a grinding belt of a belt-grinding machine |
| 08/19/1986 | US4606151 Method and apparatus for lapping and polishing optical surfaces |