| Patents for B23B 51 - Tools for drilling machines (12,490) |
|---|
| 05/23/1990 | DE3838875A1 Drilling device for producing drilled holes with undercut |
| 05/19/1990 | CA2002943A1 Process for manufacturing a cylindrical body and a device for carrying out the process |
| 05/16/1990 | CN1042109A Drilling device to produce drill holes with undercut |
| 05/10/1990 | DE3836548A1 Drilling device for producing drilled holes with undercut |
| 05/09/1990 | CN1041906A Drilling device for producing drill holes with undercut |
| 05/08/1990 | US4923344 Coupling system for boring tools |
| 05/03/1990 | WO1990004474A1 Drill/chamfer tool |
| 05/03/1990 | WO1990004473A1 Twist drill |
| 05/02/1990 | EP0365796A2 Drilling device for making holes with undercuttings |
| 04/25/1990 | EP0365218A1 A polycrystal diamond fluted tool and a process for the production of the same |
| 04/25/1990 | EP0364458A1 A method for producing a drill. |
| 04/25/1990 | CN2056369U Combined drill with adjustable rose reamer |
| 04/19/1990 | DE3834998A1 Angle drilling and milling arm |
| 04/18/1990 | EP0363617A1 Drilling device for producing drilled holes with recesses |
| 04/17/1990 | US4917550 Countersink forming tooling |
| 04/14/1990 | CA2000417A1 Polycrystal diamond fluted tool and a process for the production of the same |
| 04/05/1990 | WO1990003238A1 Twist drill for making deep holes |
| 04/04/1990 | EP0361031A1 Cutting insert for precision work, especially at borings |
| 04/03/1990 | US4913603 Spiral drill |
| 03/28/1990 | EP0360713A1 Tool for working the holes for screw heads |
| 03/28/1990 | CN1040847A Device on powered handtools for transmitting torque |
| 03/28/1990 | CN1040757A Drilling apparatur for producing drilled holes having undercut |
| 03/27/1990 | US4911253 Core and water collector |
| 03/27/1990 | US4911051 Cutting apparatus for ostomy skin barrier |
| 03/21/1990 | EP0358901A1 Boring tool, especially a metal-boring tool |
| 03/21/1990 | CN2054727U Pulling hole bit |
| 03/15/1990 | DE3831046A1 Hollow milling cutter for producing circular recesses of infinitely variable diameter |
| 03/14/1990 | EP0357648A1 Torque-transmitting device for hand-held power tools. |
| 03/14/1990 | CN1040338A Knives and drills with no need of grinding |
| 03/08/1990 | DE3829872A1 Drilling device for making undercut drill holes |
| 03/07/1990 | CN2053959U Mould structure for forming drill screw edge |
| 03/06/1990 | US4906146 Axially self-aligning drill bit |
| 02/28/1990 | EP0355321A1 Device for manufacturing bore holes with undercutting |
| 02/27/1990 | US4904130 Cutting tools with depth indication |
| 02/27/1990 | US4903785 Drilling and chiseling tool bit |
| 02/22/1990 | DE3828171A1 Drilling device for making undercut drill holes |
| 02/22/1990 | DE3828036A1 Counterboring tool which can be put onto a twist drill |
| 02/21/1990 | EP0355071A1 Drill bit having a shank with grooves |
| 02/21/1990 | CN2053124U Punching drill |
| 02/20/1990 | US4902174 Main line tapping apparatus |
| 02/08/1990 | WO1990000957A1 A device on manual machine tools for torque transmission |
| 02/08/1990 | DE3826811A1 Drilling device |
| 02/08/1990 | DE3826239A1 Drill |
| 02/07/1990 | CN1039374A Multidirectional cutting tool |
| 02/06/1990 | US4898503 Twist drill |
| 01/30/1990 | US4897000 Clamping mechanism for an apparatus for drilling or countersinking holes in a workpiece |
| 01/24/1990 | EP0352224A1 Multidirectional cutting tool |
| 01/24/1990 | EP0351699A2 Core drill bit |
| 01/24/1990 | EP0351493A2 Stone drill bit |
| 01/23/1990 | US4895482 Countersink forming tooling |
| 01/18/1990 | DE3823891A1 Drilling device |
| 01/11/1990 | DE3823409A1 Drill for making undercut holes |
| 01/10/1990 | EP0350239A1 Drill and grinding method and apparatus |
| 12/27/1989 | EP0348371A2 Drill |
| 12/27/1989 | EP0347556A1 Drilling tool for manufacturing drilled holes with recesses |
| 12/26/1989 | US4889456 Drilling tool for drilling in solid metal material, in particular for drilling in plate stacks |
| 12/26/1989 | US4889455 Drill |
| 12/26/1989 | US4889200 Rock drill |
| 12/19/1989 | US4887496 Method of making drills, endmills and other rotating-and-cutting tools |
| 12/13/1989 | EP0345815A2 Dowel drill |
| 12/12/1989 | US4886815 Treatment and prevention of retinal edema with dopaminergic antagonists |
| 12/07/1989 | DE3817806A1 Tool for producing encircling undercuts |
| 12/05/1989 | US4884571 Cranial perforator with reentrant cutting segment |
| 11/29/1989 | EP0344121A1 Tool with longitudinal slots at its shank |
| 11/29/1989 | EP0344077A1 Precision machine with a rod to determine the average axis of a cylindrical hole |
| 11/29/1989 | EP0343653A1 Milling tool and process for underreaming drilling holes |
| 11/23/1989 | EP0342623A2 Clamping mechanism for an apparatus for drilling or countersinking holes in a workpiece |
| 11/22/1989 | CN2048000U Vernier fixture for cutter |
| 11/21/1989 | US4881431 Hard metal core and casing forming composite body |
| 11/16/1989 | WO1989010815A1 Hole saw and drive |
| 11/14/1989 | US4880707 Stick of composite materials and process for preparation thereof |
| 11/14/1989 | US4879813 Apparatus for inspecting twist drills |
| 11/07/1989 | US4878788 Drill for drilling a thin plate |
| 11/07/1989 | US4878786 Tine bit |
| 11/01/1989 | CN1036720A Annular cutter having redial clearance |
| 10/25/1989 | CN2046414U 不锈钢深孔钻头 Stainless steel drill hole |
| 10/25/1989 | CN2046413U Multidrill |
| 10/18/1989 | CN1036430A Drill bit blade for masonry and rock drill |
| 10/17/1989 | US4874181 Coupling member for securing a drilling head to the rotatable rod of a pneumatic tool body |
| 10/12/1989 | DE3908674A1 Bit for masonry and rock drills |
| 10/12/1989 | DE3811249A1 Fastening device of a threaded component in an undercut bore, and drilling device for producing undercuts |
| 10/11/1989 | EP0336183A2 Fixation device for a threaded part in an undercut hole |
| 10/11/1989 | EP0336182A2 Drilling device for making undercuttings in blind cylindrical holes |
| 10/04/1989 | EP0334900A1 Undercutting drill. |
| 10/04/1989 | CN2045342U Chip-breaking tipped drill |
| 10/03/1989 | US4871287 Annular cutter having radial clearance |
| 09/28/1989 | DE3809356A1 Drill with projecting cutting edges |
| 09/27/1989 | EP0334807A2 Untercutting drilling device |
| 09/26/1989 | US4869625 Combination drilling and skiving tool |
| 09/26/1989 | CA1261818A1 Apparatus for obtaining ring-shaped cavities in the bottom of drilled holes made in any type of medium |
| 09/26/1989 | CA1261598A1 Mechanical plug drill |
| 09/21/1989 | WO1989008534A1 Process and tool body for internal supply of coolant, lubricant or cutting agent to the cutting edges or guide bars of a rotary tool |
| 09/21/1989 | WO1989008520A1 Twist drill |
| 09/20/1989 | EP0333651A1 Annular cutter having radial clearance |
| 09/20/1989 | EP0332671A1 Cutting tool, in particular drill and/or milling cutter and its process for producing it |
| 09/19/1989 | US4866834 Method for producing mounting and valve bores in a wheel |
| 09/14/1989 | DE3807225A1 Holder for a drilling tool |
| 09/14/1989 | DE3807161A1 Drill for drilling square holes |
| 09/13/1989 | EP0332437A2 Drill |
| 09/13/1989 | EP0332328A1 Mist-spouting type drilling device |