| Patents for B23B 41 - Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor (5,345) |
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| 12/23/1992 | WO1992014346A3 Drilling printed circuit boards and entry and backing boards therefor |
| 12/23/1992 | CN2125471U Composite boring device |
| 12/15/1992 | CA1311375C Drilling apparatus for producing drilled holes having an undercut |
| 12/09/1992 | EP0517098A2 Machine tool |
| 12/08/1992 | US5168608 Apparatus for the repair of turbine blades |
| 11/24/1992 | CA1310457C Cutting and the like tools |
| 11/17/1992 | US5163789 Device for producing drilled holes with an undercut |
| 11/17/1992 | US5163483 Apparatus for accessing pressurized members |
| 11/17/1992 | US5163462 Apparatus for tapping a fluid through a wall |
| 11/12/1992 | DE4121495C1 Machine for workpiece bore machining - has elongated tubular sleeve for drill spindle, retaining latter support bearing |
| 11/05/1992 | DE4114277A1 Machine for cold sawing and drilling profile section bar - has vertical spindle drill traversing horizontally in plane parallel to horizontal spindle circular saw |
| 11/03/1992 | US5159756 Method of and apparatus for cutting a pipe |
| 10/29/1992 | DE4113629A1 Automatic drilling and milling machine for long workpieces - has long bed with up to twelve independently positionable machining units and indexing work support |
| 10/27/1992 | US5157822 Plate working machine |
| 10/14/1992 | EP0508103A1 Drilling device for making holes with undercuttings |
| 09/16/1992 | CN1064428A Boring machine for boring special-shaped holes |
| 09/16/1992 | CN1018255B Drilling apparatus for producing drilled holes having undercut |
| 09/16/1992 | CA2038553A1 Kingdom pipe caping kit |
| 09/03/1992 | WO1992014572A1 Arrangement for driving a rotary tool |
| 08/26/1992 | CN1063833A Drilling printed circuit boards and entry and backing boards therefor |
| 08/25/1992 | US5141368 Automated side-drilled device and method for catheters |
| 08/20/1992 | WO1992014346A2 Drilling printed circuit boards and entry and backing boards therefor |
| 08/20/1992 | WO1992010330A3 Form drilling or turning device |
| 08/18/1992 | US5139376 Method and apparatus for controlled penetration drilling |
| 08/04/1992 | US5134762 Combination alignment cylinder boring and deck milling device |
| 07/22/1992 | CN2110534U Special hole boring machine |
| 07/07/1992 | US5127778 Musical reed duplication |
| 07/07/1992 | US5127777 Apparatus for making a drilled hole with an undercut |
| 06/30/1992 | US5125299 Portable machine tool |
| 06/17/1992 | DE4039489A1 Formbohrer Shaping Drill |
| 06/12/1992 | WO1992010330A2 Form drilling or turning device |
| 06/12/1992 | CA2075710A1 Form drilling or turning device |
| 06/02/1992 | US5118228 Tubing cutter and coping apparatus |
| 05/20/1992 | CN1061181A Vevice for producing drilled holes with undercut |
| 05/13/1992 | EP0484647A1 Device for drilling holes with an undercut |
| 04/22/1992 | EP0406238B1 Method and means for connecting a branch conduit to an existing conduit |
| 04/15/1992 | EP0479954A1 Drilling machine or drilling installation for profile steel or plate. |
| 04/11/1992 | CA2032807A1 Method and apparatus of infinitely sizing a mini blind |
| 04/07/1992 | CA1298494C Method and apparatus for making an undercut drilled hole in a fixed base |
| 04/01/1992 | EP0477766A1 Machine tool, in particular for working printed circuit boards |
| 03/17/1992 | US5096339 Electromagnetic base drill with antifloating control means |
| 03/10/1992 | US5094574 Spot facing method and apparatus for printed circuit board |
| 03/05/1992 | DE4039353C1 Closing of damaged plastics pipe - involves plug screwed into side of pipe from housing fitted on outside |
| 03/03/1992 | US5092717 Device for making a drilled hole with an undercut |
| 02/25/1992 | US5090848 Device for producing drilled holes with undercut |
| 02/25/1992 | US5090279 Vertical spindle pedestal |
| 02/25/1992 | US5090278 Lathe |
| 02/18/1992 | US5088171 Assembly robot with drilling unit |
| 02/12/1992 | EP0470757A2 Method of drilling of through-holes in printed circuit board panels |
| 02/12/1992 | EP0470425A1 Method and device for controlling the working depth for a numerically controlled machine tool |
| 02/11/1992 | US5086676 Method and apparatus for machining a differential carrier |
| 01/21/1992 | US5082402 Method of drilling of through-holes in printed circuit board panels |
| 01/21/1992 | US5081765 Methods for repair of turbine blades |
| 01/08/1992 | EP0464926A2 Process and disposition for assembling printed circuit boards |
| 01/07/1992 | US5077882 Method for reboring a housing |
| 12/31/1991 | US5076311 Directly installed shut-off valve assembly for flowing high pressure line |
| 12/31/1991 | CA1293628C Valve and tapping tee apparatus and method |
| 12/25/1991 | CN2091193U Hand boring cutter |
| 12/17/1991 | US5072494 Method and apparatus of infinitely sizing a mini blind |
| 12/05/1991 | DE4117938A1 Perforation method for PCB - partially depth drilling followed by laser finishing to required depth |
| 11/26/1991 | US5067514 Apparatus for tapping a fluid through a wall |
| 11/19/1991 | US5066171 Method for drilling a printed circuit board |
| 11/19/1991 | US5065780 Method and means for connecting a branch conduit to an existing conduit |
| 11/14/1991 | WO1991017013A1 Portable machine tool |
| 11/13/1991 | EP0455829A1 Board holder in printed board boring machine |
| 11/06/1991 | EP0454950A2 Device for making holes with intercutting |
| 10/10/1991 | DE4110751A1 Flat-component machining equipment - indexes components for distance equal to amount of tool-holder movement |
| 10/09/1991 | CN1014216B Method and apparatus for thread mill drilling |
| 10/02/1991 | DE4010177A1 Device for venting pipe line - has valve which can be opened by rotating screwed operating rod |
| 09/25/1991 | EP0334900B1 Undercutting drill |
| 09/11/1991 | EP0445404A2 Device for making drilled holes with undercutting |
| 08/28/1991 | EP0443417A1 Tapping clamp made of plastic |
| 08/22/1991 | WO1991012105A1 Drilling machine or drilling installation for profile steel or plate |
| 08/21/1991 | EP0442104A2 Device for drilling undercutted holes |
| 08/20/1991 | US5041715 Gas spring, a method of filling a gas spring with pressurized gas and an installation for performing the method |
| 08/07/1991 | EP0439660A1 Twin-shaft rotary piston machine |
| 08/07/1991 | CA2009545A1 Method of countersinking and flaring an opening in a work piece and an apparatus therefor |
| 07/17/1991 | EP0436933A2 Apparatus for and methods of the repair of turbine blades |
| 07/17/1991 | CA2007924A1 Annular boring tool |
| 07/16/1991 | US5031709 Drilling apparatus for producing drilled holes having an undercut |
| 07/11/1991 | CA2033827A1 Turbine blade repair |
| 07/09/1991 | US5030039 Apparatus and method for installing a thermometer-receiving well within a fluid service pipe |
| 06/26/1991 | CN1052533A Technology and apparatus for processing injection hole on injection nozzle |
| 06/18/1991 | US5023983 Device for producing mounting bores or valve bores in a wheel disk |
| 06/13/1991 | WO1991008073A1 Board holder in printed board boring machine |
| 05/22/1991 | EP0427989A1 Process for closing and opening a pipe |
| 05/22/1991 | CN2077339U Multifunctional drilling machine |
| 05/15/1991 | EP0427453A1 Cutting apparatus |
| 05/15/1991 | CN2076888U Self-holding drill chuck |
| 04/23/1991 | US5010232 Method of and apparatus for perforating printed circuit board |
| 04/10/1991 | CN2074695U Clamping device of hydraulic driller for lock |
| 03/27/1991 | EP0418946A1 An apparatus for tapping a fluid through a wall |
| 03/20/1991 | CN2073336U Device for repairing valve seat |
| 03/20/1991 | CN1049992A Asymmetrical drill with double chip-removing slots |
| 03/19/1991 | US5000628 One step square hole drill bit |
| 03/13/1991 | EP0416553A1 Turning lathe |
| 03/13/1991 | EP0416552A1 Vertical spindle head |
| 03/06/1991 | CN2072453U 无源振动装置 Passive vibration device |
| 03/05/1991 | US4997321 Apparatus for aligning and reboring a damaged throughbore of a housing |
| 03/05/1991 | US4997319 Apparatus for drilling a hole in a printed circuit board |