| Patents for B21D 7 - Bending rods, profiles, or tubes (6,195) |
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| 12/06/1988 | US4788845 Pipe bending machine |
| 12/06/1988 | CA1245837A1 Production procedure of brake shoes |
| 11/30/1988 | EP0292479A1 Apparatus for forming horse shoes |
| 11/24/1988 | DE3816005A1 Machine for bending round bars and similar metal elements |
| 11/23/1988 | EP0291567A2 Precision bending apparatus and process |
| 11/22/1988 | US4785650 Tube pipe bender assembly |
| 11/08/1988 | US4782686 Tube bender for greenhouse structural supports |
| 11/08/1988 | US4782684 Bending machine |
| 11/08/1988 | CA1244330A1 Bar etc. bending machine |
| 10/25/1988 | US4779436 Pipe bending machine for producing a marking on a pipe |
| 10/20/1988 | DE3711970A1 Press-bending machine for tubes |
| 10/05/1988 | CN87205433U Combined apparatus for push bending steel shapes through intermediate-frequency heating |
| 09/27/1988 | US4773284 For bending material in strip manufacture of press knives |
| 09/13/1988 | CA1241899A1 Program-controlled frame bending method and apparatus |
| 09/07/1988 | EP0281488A1 Turning bending head for a tube-bending machine |
| 09/07/1988 | EP0280768A2 Curved pipe manufacturing method and an apparatus for carrying out same |
| 08/31/1988 | CN87214272U Planet type quick pipe bender |
| 08/30/1988 | CA1241261A1 Method and apparatus for bending corrugated pipe |
| 08/23/1988 | US4765168 Method and apparatus for bending tubing |
| 08/16/1988 | US4763506 Automatic tube bending machine |
| 08/10/1988 | EP0277690A2 Method of making tungsten steel articles by mechanically bending a sheet of tungsten steel |
| 08/02/1988 | US4760727 Electric bend head for bending tubes |
| 08/02/1988 | US4760726 Bend arm apparatus for tube bending machine with cammed clamp die arrangement |
| 07/26/1988 | US4759206 Method and apparatus for manufacturing curved pipe |
| 07/19/1988 | US4757702 Bending and twisting apparatus and method for printing machine threading tube |
| 07/05/1988 | US4754632 Apparatus for bending structural metal rails |
| 06/28/1988 | CA1238563A1 Bending apparatus |
| 06/21/1988 | CA1238261A1 Strip bending |
| 06/16/1988 | WO1988004208A1 Apparatus for forming horse shoes |
| 06/15/1988 | EP0271450A2 A fork member for the bending section of a pipe-bending apparatus, connectible to the control section and provided with arms to support the grooved abutment members of the pipe to be bent |
| 06/14/1988 | US4750346 Link drive for bending arm of tube bending machine |
| 06/08/1988 | EP0175743B1 Method of manufacturing hairpin configured tubes |
| 06/01/1988 | EP0268891A1 Metal pipe bending apparatus |
| 06/01/1988 | EP0268676A1 Process and device for cold forming of steel and non-ferrous metal sections. |
| 05/31/1988 | US4747293 Bending apparatus |
| 05/31/1988 | US4747283 Boosted drive for pressure die of a tube bender |
| 05/18/1988 | CN87213448U Water-cooling flame pipe bender |
| 05/17/1988 | US4744233 Apparatus for bending rectangular tubes |
| 04/26/1988 | US4739642 Tube forming apparatus |
| 04/21/1988 | DE3734672A1 Rohrbiegewerkzeug Pipe bending tool |
| 04/14/1988 | DE3634672A1 Apparatus for the hot bending of metal tubes and a method for the production of a tube bend |
| 04/13/1988 | EP0263607A1 Bending machines |
| 04/05/1988 | US4735075 Bending device for automatic pipe bender |
| 04/05/1988 | US4735072 Straightener roll machine for brake shoe |
| 03/22/1988 | US4732025 Precision bending apparatus and process |
| 03/09/1988 | CN86209292U Support wheel for propulsion pipe-bender |
| 03/02/1988 | EP0258109A1 Method and apparatus for bending metallic wires |
| 03/02/1988 | EP0257182A2 Pipe-bending machine |
| 03/01/1988 | US4727738 Bending apparatus |
| 03/01/1988 | US4727737 Method and apparatus for bending a heat exchanger coil |
| 02/24/1988 | EP0256974A2 Apparatus for bending concrete reinforcing steel |
| 02/18/1988 | DE3711277A1 Verfahren zur steuerung und kontrolle der profilumformung Procedures to control and control of the profile cold forming |
| 02/09/1988 | US4723431 Method for manufacturing formed metal |
| 02/09/1988 | CA1232519A1 Cutting device for a multi-dimensional bending apparatus |
| 02/02/1988 | US4722213 Method of cold drawing a metal tube |
| 01/26/1988 | US4720950 Spacers for use in multiple-pane windows or the like |
| 01/19/1988 | US4719783 Portable pipe bending machine |
| 01/14/1988 | WO1987007537A3 Process and device for cold forming of ferrous and non-ferrous metal sections |
| 01/12/1988 | US4719577 Bending machine with digital electronic control of bend angle |
| 01/12/1988 | US4718265 Bending apparatus for rod- or ribbon-shaped material |
| 12/30/1987 | CN87201264U Manual rolling pipe bender |
| 12/17/1987 | WO1987007537A2 Process and device for cold forming of ferrous and non-ferrous metal sections |
| 12/17/1987 | DE3619782A1 Method and apparatus for forming perforated feedstock to give a U-shaped top strap |
| 12/15/1987 | US4712406 Apparatus for bending tubular workpieces |
| 12/15/1987 | CA1230287A1 Method of, and apparatus for producing multi- dimensionally bent elongate articles |
| 12/03/1987 | DE3617986A1 Apparatus for bending a plurality of sectional bars arranged one above the other |
| 11/25/1987 | EP0246560A2 Manufacturing method of prestressed steel girder and achieved girders |
| 11/24/1987 | US4708009 Bending device for the production of formed parts consisting of wire or strip sections |
| 11/19/1987 | EP0245623A2 Tube-bending machine |
| 11/11/1987 | EP0245036A1 Fluid flow or pressure transmission device |
| 11/10/1987 | US4704886 Stretch-forming process |
| 11/07/1987 | CN86207862U Die of pipe-bender |
| 11/04/1987 | CN87201017U Hand multifuction metal pipe bender |
| 10/20/1987 | CA1228284A1 Method and apparatus for bending a rolling mill laying pipe |
| 10/14/1987 | EP0241174A2 Apparatus for bending structural metal rails |
| 10/14/1987 | EP0240623A2 Strip bending |
| 10/03/1987 | CN86205562U Hydraulic pipe-bender |
| 10/01/1987 | DE3704808A1 Apparatus for the storage and stepwise alteration of the working range of bending machines |
| 09/30/1987 | EP0239364A2 A drive system for a bending machine |
| 09/23/1987 | EP0237543A1 Pipe bending machine |
| 09/09/1987 | EP0235959A1 Method of producing a tube assembly |
| 09/08/1987 | US4691555 Tube bending tool |
| 09/01/1987 | US4689981 Draw-bending method |
| 08/25/1987 | US4688414 Production procedure of brake shoes |
| 08/25/1987 | CA1225819A1 Methods and apparatus for constructing cutting tools |
| 08/18/1987 | US4686844 Method of bending a thick metal tube, and apparatus for implementing the method |
| 08/18/1987 | US4686809 Method and apparatus for roofing |
| 08/12/1987 | EP0231321A1 Pipe bending machine |
| 08/12/1987 | EP0231320A1 Pipe bending machine |
| 08/05/1987 | EP0231092A2 Bending machine |
| 07/08/1987 | EP0227779A1 Pipe bending machine |
| 07/08/1987 | EP0227778A1 Pipe bending machine |
| 07/01/1987 | EP0227429A2 Bending machine for tube or rod |
| 06/24/1987 | EP0226167A2 Method of bending elongated material and bending machine for carrying out this method |
| 05/26/1987 | CA1222219A1 Anode for electrolysis |
| 05/19/1987 | US4665731 Bending apparatus |
| 05/12/1987 | CA1221531A1 Chuck assembly |
| 05/06/1987 | EP0220639A2 Hydraulic transmission tube bending device that can be operated with a single hand |
| 05/05/1987 | US4662204 Apparatus for automatically bending metallic tubes |
| 05/05/1987 | CA1221225A1 Combination cable crimper and cutter |