| Patents for B21D 1 - Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling (4,692) |
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| 12/27/1989 | CN1038228A Spiral bevel-gear cold-straightening technological equipment and straightening method thereof |
| 12/26/1989 | US4888975 Resilient wedge for core expander tool |
| 12/19/1989 | US4887343 Method and apparatus for roller leveler |
| 12/12/1989 | US4885925 Strap for automotive body working |
| 11/30/1989 | WO1989011437A1 Lifting device for use e.g. in conjunction with an automobile body straightener |
| 11/30/1989 | WO1989011354A1 Body clamp for use e.g. in conjunction with an automobile body straightener |
| 11/30/1989 | WO1989011353A1 Tension apparatus for use e.g. in conjunction with an automobile body straightener |
| 11/30/1989 | WO1989011352A1 Quick-action fastener for use e.g. with an automobile body straightener |
| 11/29/1989 | EP0343200A1 Car body frame straightening apparatus |
| 11/21/1989 | US4881392 Hot leveller automation system |
| 11/08/1989 | EP0340348A1 A clamping device |
| 11/07/1989 | US4878371 Realignment tool for aperture mating surface |
| 11/02/1989 | WO1989010215A1 Resilient wedge for core expander tool |
| 10/17/1989 | US4873861 Lifting arrangement in vehicle chassis straightening benches |
| 10/03/1989 | US4870850 Method and device for leveling metal strip to be fed into continuous annealing furnace |
| 09/28/1989 | DE3824593C1 Apparatus for correcting the sabre which occurs during the punching of strips and taped components |
| 09/19/1989 | US4866967 Apparatus for the stretch levelling and slitting of metal strip |
| 09/05/1989 | US4862727 Hoisting structure for automotive vehicle |
| 09/05/1989 | US4862724 Expander for thin walled metal pipe |
| 08/17/1989 | DE3803394A1 Straightening and stress-relief apparatus for elastic materials, especially foils or sheets |
| 08/16/1989 | EP0328469A1 Pulling member adaptable to a bench for mounting, controlling and repairing car bodies |
| 08/15/1989 | US4856700 Apparatus for assembling a structural panel in order to prevent the sag thereof |
| 08/08/1989 | US4854151 Apparatus for realigning vehicle body and frame members |
| 07/18/1989 | US4848136 Car body rectifying means |
| 07/18/1989 | US4848132 Automobile body straightener |
| 07/18/1989 | US4848130 Apparatus for use with vehicle frame straightener |
| 07/11/1989 | US4845974 Vehicle chassis straightening bench |
| 07/11/1989 | CA1257318A1 Method of preventing sag of panel and apparatus therefor |
| 06/06/1989 | US4836010 Floor puller to straighten a bent member |
| 05/16/1989 | US4829799 Method of manufacturing substrate for memory disk |
| 05/09/1989 | US4827759 Dent pulling apparatus |
| 05/02/1989 | US4825680 Method of manufacturing metal substrates for disk for memory storage media |
| 05/02/1989 | US4825679 Fixing clamp for straightening the bodywork of accident-damaged automobiles, and in particular the sheet metal setas for MacPherson suspension heads |
| 04/25/1989 | US4823589 Automotive frame straightening apparatus and method |
| 04/25/1989 | US4823582 Device for planing a sheet metal strip under tension |
| 04/25/1989 | US4823578 Method of manufacturing substrate for memory disk |
| 04/20/1989 | WO1989003504A1 Face plate for mounting, controlling and repairing motor vehicle bodies |
| 04/12/1989 | EP0311535A1 Bench, especially for fitting, controlling and repairing motor vehicle bodies |
| 04/11/1989 | US4819470 Method for continuously straightening thin metal strips |
| 04/06/1989 | WO1989002791A1 Car body frame straightening apparatus |
| 04/04/1989 | US4817412 Unibody lifting and anchoring assembly |
| 03/28/1989 | US4815719 Chain clamping device |
| 03/21/1989 | US4813264 Automotive body and frame repair device |
| 03/15/1989 | EP0307331A2 Repairing and control apparatus for damaged vehicle bodies |
| 03/14/1989 | US4811586 Leveling machine for steel sheet and strip |
| 03/01/1989 | CN2033305U Tension straightener |
| 02/28/1989 | CA1250515A1 Method and apparatus for continuously straightening thin metal strip |
| 02/21/1989 | US4805432 Device for axially supporting a roller |
| 02/15/1989 | CN2032515U Multiple-roll steel straightener |
| 02/14/1989 | US4803881 Pipe stretching apparatus |
| 02/07/1989 | US4802358 Vehicle repair apparatus |
| 02/01/1989 | CN2031722U Bottle cover shaping machine |
| 01/11/1989 | EP0298852A2 Method and apparatus for levelling a metal band |
| 01/04/1989 | EP0297632A2 A vehicle chassis straightening bench |
| 01/03/1989 | US4794783 Work rack for vehicles |
| 01/03/1989 | US4794782 Pivoting hoist |
| 01/03/1989 | CA1247997A1 Vehicle repair and alignment rack |
| 12/22/1988 | DE3732195C1 Apparatus for correcting the sabre which occurs particularly in the one-sided punching of strips and taped components |
| 12/20/1988 | US4792075 For exerting a drag upon a moving metal strip |
| 12/20/1988 | US4791802 Installation for the repair and checking of vehicle bodies |
| 11/15/1988 | US4784027 Inertial hammer with safety connection |
| 11/08/1988 | US4782687 Power tool for auto body repair |
| 11/01/1988 | US4781045 Vehicle checking and straightening equipment with interchangeable operating heads |
| 10/25/1988 | CA1243479A1 Extrusion cladding of base strip for cushioned automotive strap handle |
| 10/20/1988 | WO1988007898A1 Electromagnetic dent removing tool |
| 09/27/1988 | US4773949 Process for preventing transverse displacement of metal strip |
| 09/14/1988 | EP0282176A2 Vehicle repair and alignment rack |
| 09/13/1988 | US4770025 Pulling clamp |
| 09/06/1988 | US4768363 Method of levelling two-layered clad metal sheet |
| 08/23/1988 | US4765170 Vehicle frame straightening machine |
| 08/23/1988 | US4765169 Method of tension leveling nonhomogeneous metal sheet |
| 08/09/1988 | US4761987 Door lock opening restoring tool and method for using the same |
| 08/09/1988 | US4761984 Apparatus for supporting a vehicle for straightening and alignment |
| 08/03/1988 | EP0276614A1 Active rolls of a levelling stand |
| 07/20/1988 | EP0274722A2 Straightening machine for plate and strips |
| 07/06/1988 | CN87106954A Roller mechanim for free deformation treatment of moving belt product |
| 07/05/1988 | US4754637 Electromagnetic dent removing tool |
| 06/28/1988 | US4753104 Dent removing tool and method |
| 06/21/1988 | US4751839 Method for removing certain of the corrugations in a helically corrugated pipe |
| 06/21/1988 | CA1238266A1 Method and apparatus for dressing hot strip coils, especially coil-box coils |
| 06/15/1988 | EP0271066A2 Method of preventing expansioninduced wrinkles of plastic film and metal foil |
| 06/08/1988 | EP0269705A1 Car body rectifying means. |
| 06/08/1988 | CN86108028A Method of preventing sag of panel and apparatus therefor |
| 06/07/1988 | US4748842 Sheet metal pulling apparatus |
| 06/07/1988 | US4748729 Mounting a roller in a straightening machine |
| 06/01/1988 | EP0269538A1 Draw-straighting arm and installation for straightening vehicle bodies or other deformed motor vehicle parts |
| 06/01/1988 | EP0268657A1 Procedure in car body rectifying work and rectifying means arrangement. |
| 05/31/1988 | US4747579 Post frame machine |
| 05/24/1988 | US4745791 Portable kit assembly for straightening automobiles |
| 05/24/1988 | US4745788 Roll rearranging apparatus |
| 05/19/1988 | WO1988003446A1 Dent removing tool and method |
| 05/19/1988 | DE3636707A1 Apparatus for the stretch-bend-straightening of metal strips |
| 05/17/1988 | US4744501 Method of preventing sag of panel and apparatus therefor |
| 04/26/1988 | US4740024 Self-tightening clamp |
| 04/20/1988 | EP0264163A1 Process for preventing transverse displacement of metal strip |
| 04/20/1988 | EP0263971A1 Method and device for leveling metal strip to be fed into continuous annealing furnace |
| 04/13/1988 | EP0263334A2 Roller arrangement for the non-deformable treatment of moving sheet material |
| 03/23/1988 | EP0260361A2 Leveling apparatus |
| 03/22/1988 | US4732029 Accident rescue tool |
| 03/22/1988 | CA1234345A1 Door hinge aligning tool and method |