| 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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| 01/12/2000 | EP0970770A1 Apparatus and method for working drill holes |
| 01/11/2000 | US6013016 Flexible boring machine and method |
| 01/11/2000 | US6012475 Self-piercing valve assembly |
| 01/05/2000 | EP0968069A1 Machine tool |
| 01/04/2000 | US6010284 Boring machine for machining or boring a semi-cylindrical workpiece |
| 12/30/1999 | DE19827979A1 Equipment for removing hydraulic fluid from closed element |
| 12/28/1999 | US6007278 Device for machining an interior surface of a tubular object |
| 12/09/1999 | WO1999063261A1 Self-piercing valve assembly |
| 12/08/1999 | CN2352291Y Self-advancing type manual pipeline boring holes machine |
| 12/01/1999 | EP0961532A2 Drilling machine with a least two machining heads for machining printed circuit boards |
| 11/18/1999 | DE19922159A1 Extractor removes fluid from scrap sealed components e.g. shock absorber of vehicle |
| 11/17/1999 | CN2348958Y Hole drill for large diameter metal and cement pipe |
| 11/10/1999 | EP0955410A2 Drill for railroad rail having a four position and six way hydraulic control valve |
| 11/10/1999 | CN1234481A Rail drill having four-position six-way hydraulic control valve |
| 11/02/1999 | US5975117 Pipe fitting for drilling |
| 10/27/1999 | CN1232732A Special pinhole borer |
| 10/20/1999 | CN1045735C Drilling device having radially displaceable drill shank |
| 10/14/1999 | DE19816063A1 Anbohrvorrichtung für unter Mediendruck stehende Rohrleitungen, insbesondere für Kunststoff-Rohrleitungen Apparatus for drilling is under media pressure pipelines, especially for plastic pipes |
| 10/13/1999 | EP0949443A2 Device for tapping pressurised pipelines, in particular plastic pipelines |
| 10/13/1999 | CN2342917Y Vertical drilling machine cylinder boring device |
| 10/12/1999 | US5964553 Drilling tool with internal cavities for chip removal |
| 09/29/1999 | CN2340539Y Improved angular adjustor of tool machine |
| 09/28/1999 | US5957168 Apparatus and method for controlled penetration of compressed fluid cylinders |
| 09/15/1999 | EP0764068B1 Method and apparatus for making a longitudinal hole in a pipe |
| 09/02/1999 | WO1999043951A1 Method for producing an angled bore in a component |
| 09/02/1999 | DE19808611A1 Verfahren zum Herstellen einer abgewinkelten Bohrung in einem Bauteil A method for manufacturing an angled bore in a component |
| 08/31/1999 | US5944458 Boring machine alignment system and method of use |
| 08/26/1999 | DE19805362A1 Bored connector fitting for linking gas or water mains pipe to pipe leading to connection point in house |
| 08/26/1999 | DE19804578C1 Verfahren zur Erzeugung eines Kreis-Keil-Profils A method of generating a circular wedge profile |
| 08/18/1999 | CN2333466Y Movable boring machine |
| 08/17/1999 | US5938378 Apparatus for boring webs of steel sections |
| 08/12/1999 | WO1999039855A1 Method for producing a circular key profile |
| 08/04/1999 | EP0932480A1 Apparatus for mounting a drill on a pipe |
| 07/28/1999 | CN2330440Y Pipeline drill |
| 07/27/1999 | US5927909 Method and device for drilling holes into a mantle of a cylinder of a paper machine |
| 07/22/1999 | CA2259823A1 High-speed gun drill |
| 07/20/1999 | US5924828 Drill for a railroad rail having a four position and six way hydraulic control valve |
| 07/14/1999 | EP0928231A1 Method and device for drilling of holes into the mantle of a cylinder or equivalent of a paper machine |
| 07/14/1999 | EP0765201B1 Drilling tool with rounded insert support surfaces |
| 07/14/1999 | CN2328457Y Digit control microhole drill machine |
| 07/14/1999 | CN2328456Y 大口径管道钻孔机 Large diameter drill pipe |
| 07/07/1999 | CN2327478Y Apparatus for boring on steel plates |
| 06/30/1999 | CN2326372Y Knock-conversion structure of torsion stageless regulating electric drill |
| 06/29/1999 | US5915890 Method and device for influencing the run of deep hole drilled passages |
| 06/23/1999 | CN2325139Y Universal bench type machine for tapping and holing |
| 06/16/1999 | CN1043616C Device for producing drilled holes with undercut |
| 06/02/1999 | CN2321565Y Holing machine for pipeline without cutting off transmission |
| 05/12/1999 | DE19750352C1 Branch drill assembly for fluid pipe |
| 05/11/1999 | US5901759 Rupture vessel with auxiliary processing vessel |
| 05/06/1999 | DE19750078C1 Branch pipe connecting machine for main |
| 05/04/1999 | US5899796 Rotary grinder assembly and a cutter robot |
| 04/27/1999 | US5897273 Deburring tool and process on a hole opposite the tool |
| 04/22/1999 | DE19756326C1 Tool for machining inner surface of fluid cylinders |
| 04/13/1999 | US5893687 Plate suppressing device for drilling apparatus |
| 04/13/1999 | US5893686 Pipe tapping drill attachment |
| 04/07/1999 | EP0906806A2 Machine tool featuring a number of machining heads for machining printed circuit boards |
| 03/23/1999 | US5884379 Drum processing apparatus |
| 03/09/1999 | US5879112 Water supply line tapping tool |
| 03/03/1999 | EP0873476A4 Tacking fastener |
| 03/02/1999 | US5876161 Method and apparatus for making a longitudinal hole in a pipe |
| 02/17/1999 | CN2307650Y Special boring mill for processing engine cylinder head camshaft dead eye |
| 02/10/1999 | EP0845317B1 Device for metal-cutting working of profiles |
| 01/30/1999 | CA2218774A1 Wallboard electrical box cutter having a cutting chain |
| 01/27/1999 | CN2305265Y Magnetic based hole driller |
| 01/27/1999 | CN2305264Y Fixed shaft type boring mill for automobile brake drum |
| 01/19/1999 | US5860773 Drilling tool with rounded insert support surfaces |
| 12/30/1998 | CN2302077Y Electric boring and milling machine |
| 12/30/1998 | CN2302076Y Electric small-bore boring and milling head |
| 12/29/1998 | US5853269 Wallboard electrical box cutter having a cutting chain |
| 12/23/1998 | EP0885677A2 Deep-hole boring unit |
| 12/23/1998 | EP0885080A1 Cylinder block mounting fixture |
| 12/22/1998 | US5850769 Device for broaching a workpiece |
| 11/17/1998 | US5836725 Apparatus and method for boring overhead cam engine cylinder heads |
| 11/17/1998 | US5836077 Method for forming grooves |
| 11/10/1998 | US5833410 For removing a sharp edge formed on an inlet during oil hole drilling |
| 11/10/1998 | US5832966 Method for removing fluid from a container having a wall |
| 11/05/1998 | WO1998048964A1 Tool and method for processing perforations |
| 10/29/1998 | DE19717835A1 Werkzeug sowie Verfahren zur Bearbeitung von Bohrungen mit einem derartigen Werkzeug Tools and processes for machining holes with such a tool |
| 10/28/1998 | EP0873476A1 Tacking fastener |
| 10/22/1998 | WO1998046386A1 Method and device for drilling of holes into the mantle of a cylinder or equivalent of a paper machine |
| 10/15/1998 | DE19758461A1 Valve bore fitting for plastics supply conduits under medium pressure |
| 10/14/1998 | CN2294127Y Apparatus for boring holes of arylon helmet |
| 10/13/1998 | US5819815 Apparatus and method for controlled penetration of compressed fluid cylinders |
| 10/07/1998 | EP0868630A1 Valve self-piercing tap |
| 10/01/1998 | DE19711317A1 Werkzeugmaschine Machine tool |
| 09/24/1998 | WO1998041350A1 Machine tool |
| 09/24/1998 | WO1998041349A1 Machine tool |
| 09/24/1998 | DE19801851A1 Spot drilling fitting for plastics tubes under pressure |
| 09/16/1998 | CN2291239Y Hydraulic broaching bit |
| 09/10/1998 | DE19705240A1 Feed system for horizontal deep boring machine |
| 08/19/1998 | CN1190609A Hole drilling device |
| 08/13/1998 | DE19705265A1 Valve bore fitting for plastics supply conduits under medium pressure |
| 08/12/1998 | EP0793556B1 Precision drill for drilling noncircular bores |
| 08/04/1998 | US5788434 Apparatus for facing a bearing cap |
| 07/28/1998 | US5785466 Tool for aligning a portable boring bar for reboring of a bore at a location relative to a further bore |
| 07/21/1998 | US5782585 Precision drill for drilling noncircular bores |
| 06/24/1998 | CN2284661Y Machine for working half round arc groove of engine cylinder head |
| 06/23/1998 | US5769574 Method and apparatus for precision boring of pocket-holes |
| 06/10/1998 | CN2283537Y Hard metal compound countersink tool for cylinder of motorcycle |
| 06/10/1998 | CN2283536Y Hard metal step countersink compound tool for motorcycle |