| Patents for B23B 3 - General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines (2,606) |
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| 04/25/1991 | DE4031428A1 Tool for machining out ring liners - has tool-bit guided by mechanical follower running on outer surface of ring |
| 04/18/1991 | WO1991004812A1 Method of controlling rotations of main shafts |
| 04/16/1991 | US5007314 Lathe |
| 04/16/1991 | US5007151 Machine tool turret |
| 04/11/1991 | DE3930221A1 Tool turret attachment for lathe - has built-in Y-axis driven through lead-screw and stepping motor |
| 04/09/1991 | US5005452 High production machining device |
| 03/28/1991 | DE4025932A1 Adjustable tool head for machine tool |
| 03/21/1991 | WO1991003340A1 Device for holding and operating a facing head |
| 03/20/1991 | EP0418213A2 Manually controlled lathe |
| 03/12/1991 | CA2025004A1 Manually controllable lathe |
| 03/10/1991 | WO1991003345A1 Tool head for use in machine tools |
| 02/26/1991 | US4995300 Lathe for generating aspherical surfaces on work pieces |
| 02/13/1991 | EP0412635A2 High production machining device |
| 02/06/1991 | EP0411387A1 C-axis-gearing |
| 01/30/1991 | EP0410044A1 Lathe with three spindles for workpieces |
| 01/29/1991 | US4987807 Multispindle lathe |
| 01/29/1991 | CA1279508C Bearing arrangement for portable lathe |
| 01/15/1991 | CA1278911C Flexible machining system |
| 01/08/1991 | US4982634 Multiple-spindle automatic lathe |
| 01/08/1991 | US4982496 Method of making lug journal for roller cutter drill bits |
| 01/02/1991 | EP0405112A2 Thermo-neutral guiding means |
| 01/02/1991 | EP0405111A2 Machine bed with overhang |
| 01/01/1991 | US4981055 Portable facing tool |
| 12/27/1990 | WO1990015692A1 Rotatably driven spindle |
| 12/27/1990 | EP0403843A2 Spindle driving device for a machine tool |
| 12/19/1990 | EP0402506A1 Driven spindle |
| 12/18/1990 | US4979121 Control method and apparatus for controlling machining operations in a machine tool having a plurality of coordinate systems |
| 12/11/1990 | US4976176 Use with a portable lathe |
| 12/06/1990 | DE3918118A1 Plandrehkopf mit massenausgleich Facing head with mass balancing |
| 09/20/1990 | WO1990006579A3 Improved disc unit |
| 09/19/1990 | EP0387513A1 Tool carrying slide for lathes |
| 09/19/1990 | CN2062264U Horizontal machine tool for working load-bearing saddle |
| 09/05/1990 | EP0385315A2 Remaining bar material machining method for NC lathe |
| 09/04/1990 | US4953274 Machine tool with two workpiece spindles |
| 08/29/1990 | EP0384907A1 Method and device for producing an article from a blank |
| 08/28/1990 | US4951376 Machine tool |
| 08/21/1990 | US4949444 Machine tool machining method |
| 08/21/1990 | US4949443 Numerically controlled lathe |
| 08/16/1990 | DE3904281A1 Tool turret |
| 07/31/1990 | US4944205 Ratchet feed drive for clamshell lathe |
| 07/17/1990 | USRE33262 Automated turret lathe |
| 07/05/1990 | DE3844338A1 Method and apparatus for machining workpieces of long-chip material |
| 07/04/1990 | EP0375899A2 Digitally controlled lathe with a sliding headstock |
| 06/27/1990 | EP0374259A1 Two opposed main shaft type cnc lathe |
| 06/21/1990 | DE3842190A1 Lathe |
| 06/14/1990 | WO1990006579A2 Improved disc unit |
| 06/14/1990 | WO1990006201A1 A boring and surfacing machine |
| 06/06/1990 | EP0371450A2 Headstock-reciprocating-type automatic lathe and machining method using the same |
| 05/29/1990 | CA1269798A1 Extruded closed cell thermoplastic foam |
| 05/23/1990 | EP0369232A2 Machine tool |
| 05/23/1990 | EP0368977A1 Multifunctional machine-tool for complex machining of long pieces. |
| 04/25/1990 | EP0364593A1 Machine tool having two main spindles |
| 04/12/1990 | DE3834342A1 Lathe |
| 03/13/1990 | CA1266555A1 Apparatus for machining workpieces and method therefore |
| 03/07/1990 | EP0356759A2 Lathe with concentrically disposed work piece spindles |
| 02/14/1990 | EP0354393A2 Machine for working terminals |
| 02/13/1990 | US4899793 Duplicating system for a lathe |
| 01/25/1990 | DE3824602A1 Machine for machining cubic and rotationally symmetric workpieces |
| 01/10/1990 | EP0349641A1 Machine tool |
| 12/28/1989 | WO1989012535A1 Spindle drive for a veneer lathe |
| 11/30/1989 | WO1989011374A1 Multifunctional machine-tool for complex machining of long pieces |
| 11/23/1989 | DE3913137A1 Machine tool having a tool-change device |
| 11/21/1989 | US4881309 Flexible machining system |
| 11/15/1989 | EP0342153A1 Auxiliary device for precisely turning a work piece |
| 11/07/1989 | CA1262621A1 Twin disc type tool turret mechanism for cnc machines |
| 11/02/1989 | WO1989010223A1 Two opposed main shaft type cnc lathe |
| 10/31/1989 | US4876931 Device for machining a sealing groove on an engine block |
| 09/27/1989 | EP0334298A2 Method and device for machining articles having a rotational symmetry |
| 09/26/1989 | US4868969 Process for producing workpieces |
| 09/21/1989 | WO1989008533A1 Machine tool having two main spindles |
| 08/31/1989 | DE3803219A1 Numerisch gesteuerte bearbeitungsmaschine mit zwei werkstueckspindeleinheiten Numerically controlled processing machine with two werkstueckspindeleinheiten |
| 08/16/1989 | EP0328392A2 A method of machining a workpiece by a machine tool |
| 08/09/1989 | CN1034498A Multiple automatic lathes |
| 08/03/1989 | DE3802492A1 Turning machine (lathe) |
| 08/03/1989 | DE3802491A1 Double-spindle turning machine |
| 08/01/1989 | US4852436 For machining an aspheric surface |
| 08/01/1989 | US4852435 Portable flange facer |
| 07/25/1989 | US4850761 Milling process and tool |
| 07/18/1989 | US4848422 Rotary spindle former |
| 07/18/1989 | US4847960 Tool turret |
| 07/13/1989 | WO1989006176A1 Lathe |
| 07/04/1989 | US4843691 Lathe |
| 06/29/1989 | DE3743001A1 Copying device for a wood turning machine |
| 06/20/1989 | US4840095 Turning machine |
| 06/14/1989 | EP0319731A2 Lathe with axially movable spindle head |
| 06/14/1989 | EP0193533B1 Lathe |
| 06/13/1989 | US4837918 Machine tool assembly |
| 06/08/1989 | DE3740223A1 Tool turret for lathes, with linear tool holders |
| 05/24/1989 | CN2038040U Additional equipment of the reel cart with bending-rope slot |
| 05/16/1989 | US4829860 Segmented sliding bearing arrangement for portable lathe |
| 05/10/1989 | EP0314802A1 High-efficiency tool selection system |
| 05/09/1989 | US4827815 Hollow-spindle method of machining a short-length workpiece |
| 05/09/1989 | US4827814 Lathes |
| 04/26/1989 | EP0312944A2 Multi-spindle automatic lathe |
| 04/25/1989 | US4823655 Multi-speed drive system for a portable lathe |
| 04/19/1989 | CN2036075U Brake device for c 616 lathe |
| 04/12/1989 | EP0310811A1 Dualspindle lathe |
| 04/05/1989 | EP0310219A2 Machining control apparatus and machining control method in a machine tool |
| 04/05/1989 | EP0309951A1 Machine tool with two work piece spindles |
| 03/21/1989 | US4813311 Center drive machine |