| Patents for B23B 35 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods (1,393) |
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| 10/14/1992 | EP0508103A1 Drilling device for making holes with undercuttings |
| 10/14/1992 | CN2118609U Sealed type drilling threading machine |
| 08/26/1992 | CN1063833A Drilling printed circuit boards and entry and backing boards therefor |
| 08/20/1992 | WO1992014346A2 Drilling printed circuit boards and entry and backing boards therefor |
| 06/10/1992 | CN2106681U Grinding machine with bench drills |
| 03/03/1992 | US5092715 Method of piercing a plate, of any configuration, with a very high perforation density and products thus obtained |
| 02/19/1992 | CN2096434U Bar and shape rail electric drill |
| 12/03/1991 | US5069093 Method and apparatus for forming an incomplete hole in a workpiece |
| 11/26/1991 | US5067859 Method for drilling small holes in printed circuit boards |
| 11/19/1991 | US5066171 Method for drilling a printed circuit board |
| 10/29/1991 | US5060363 Apparatus and method for forming holes in thermoplastic webbing |
| 10/16/1991 | CN1055313A Multifunctional matching machine tool and cutting process thereof |
| 03/27/1991 | CN1050154A Process for installation of expansion element |
| 03/20/1991 | EP0417420A1 Method for the fitting of an expansion element |
| 03/05/1991 | US4997319 Apparatus for drilling a hole in a printed circuit board |
| 09/12/1990 | EP0386378A2 Thin panel drilling method and apparatus |
| 09/04/1990 | US4954200 Laminate of polyphenylene oxide, epoxy resin, and amine hardener |
| 09/04/1990 | US4954022 Method for machining multiple cuts in a workpiece to a uniform depth |
| 08/22/1990 | EP0383652A1 Method of piercing a board with a very high density of holes, and of whatever shape, and resultant products |
| 08/13/1990 | CA2009826A1 Method for boring a high density of perforations of various configuration in a metal plate and result of same |
| 06/12/1990 | US4932117 Thin panel drilling method and apparatus |
| 03/29/1990 | DE3831767A1 Linear rolling bearing and method for its production |
| 03/28/1990 | EP0360713A1 Tool for working the holes for screw heads |
| 10/10/1989 | US4872787 Method of drilling printed circuit board |
| 09/26/1989 | CA1261818A1 Apparatus for obtaining ring-shaped cavities in the bottom of drilled holes made in any type of medium |
| 09/12/1989 | US4865493 Apparatus and method for opening combination safes |
| 08/23/1989 | EP0187765B1 Process to increase the reliability of the metallization of borings in the production of multilayer printed circuits |
| 08/01/1989 | US4853273 Drill board and method of making the same |
| 07/18/1989 | US4847961 Method and apparatus for stitch-machining deep cavities in metal workpieces |
| 07/05/1989 | EP0323046A2 Method and appratus for stitch-machining deep cavities in metal workpieces |
| 05/17/1989 | EP0315829A2 Drill back-up material for small bore drilling of circuit boards |
| 10/04/1988 | USRE32759 Backup material for small bore drilling |
| 01/19/1988 | US4719780 Tool point and its working method and tool for making and flanging a hole |
| 11/18/1987 | CN86203381U Magnetizing apparatus for increasing lifetime of cutting tool |
| 10/20/1987 | US4700789 Device to obtain ring-shaped cavities in the bottom of drilled holes made in any type of medium |
| 09/23/1987 | EP0238161A2 A backup sheet for backing a worksheet during a small bore drilling process |
| 09/09/1987 | CN86209852U Machining tool for cylindrical bore |
| 09/08/1987 | CA1226428A1 Method for the machining of composite materials |
| 08/12/1987 | EP0231720A1 Apparatus for the obtention of annular cavities at the bottom of drills made on surfaces of any kind |
| 08/11/1987 | CA1225260A1 Automatic toolchanger tapping lubricant dispenser |
| 07/21/1987 | US4680897 Method for machining holes in composite materials |
| 06/02/1987 | US4670172 Process and kit for working metals |
| 03/03/1987 | US4646596 Machine tools |
| 02/17/1987 | US4643936 Backup material for small bore drilling |
| 12/17/1986 | EP0205040A2 Method for cleaning a workpiece after machining with a cutting instrument |
| 10/08/1986 | EP0196810A2 Process and kit for working metals |
| 08/12/1986 | US4605345 Drilling apparatus with wall-covering protection |
| 08/12/1986 | US4605344 Device for drilling holes in a stack of plates |
| 07/23/1986 | EP0187765A1 Process to increase the reliability of the metallization of borings in the production of multilayer printed circuits. |
| 07/08/1986 | US4599134 Cleaning drilled holes in printed circuits |
| 06/24/1986 | US4596500 Drilling method and relevant drilling machine for stacked boards, particularly for printed circuits |
| 03/04/1986 | US4573841 Method of and apparatus for the finish shaping of profiled cylindrical holes |
| 12/05/1985 | WO1985005529A1 Process and arrangement to increase the reliability of the metallization of borings in the production of multilayer printed circuits |
| 09/03/1985 | CA1192730A1 Industrial process for manufacturing jewelry, such as rings, preferably in precious metal, set with stones, device for carrying out said process and the resulting jewels |
| 05/28/1985 | US4519732 Method for the machining of composite materials |
| 04/03/1985 | EP0135852A2 Drilling arrangement for holes in sheets or piles of sheets |
| 03/12/1985 | US4503693 Apparatus for making a hole and a hole-surrounding collar in the side of a pipe |
| 12/05/1984 | EP0127555A1 Protection device for a wall covering or the like during the drilling of its support |
| 12/04/1984 | US4485860 Forming a cylindrically shaped hole in a laminated wooden beam |
| 10/23/1984 | CA1176438A1 Machine tools |
| 08/29/1984 | EP0117141A2 Drilling method and relevant drilling machine for stacked boards, particularly for printed circuits |
| 07/04/1984 | EP0112437A1 Tool for an exact as well as a fine machining of cylindrical section openings |
| 07/03/1984 | US4457056 Carrying out said process and the resulting jewels |
| 06/27/1984 | EP0111599A1 Method of processing through-holes |
| 04/03/1984 | US4440529 Method and means for operating a drill for eliminating axial scratches during retraction |
| 05/04/1983 | EP0077781A1 Backup material for drilling |
| 02/15/1983 | US4373895 Extrusion die and method for producing extrusion die for forming a honeycomb structure |
| 09/30/1982 | WO1982003193A1 Backup material for drilling |
| 06/01/1982 | CA1124590A1 Machine for cutting holes with annular cutters |
| 05/05/1982 | EP0050693A2 Backup material for use in drilling printed circuit boards |
| 01/20/1982 | EP0044200A1 Machine tools |
| 01/19/1982 | US4311419 Method for drilling circuit boards |
| 12/08/1981 | CA1113921A1 Indicator ring |
| 12/02/1981 | EP0040598A1 Compressor |
| 09/02/1981 | EP0034977A1 Industrial process for making jewellery, especially rings, rather of precious metal, provided with set stones, device for performing said process of obtaining jewellery |
| 08/25/1981 | US4285619 Surface machining method and a machine for performing the method |
| 08/05/1981 | EP0032932A1 Backup material and method for drilling |
| 08/05/1981 | EP0032931A1 Entry material and method for drilling circuit boards |
| 06/11/1981 | WO1981001598A1 Compressor |
| 05/26/1981 | US4269549 Method for drilling circuit boards |
| 04/07/1981 | US4260300 Methods and apparatus for forming holes in workpieces |
| 04/07/1981 | US4260029 Midpoint centralizer |
| 02/19/1981 | WO1981000368A1 Backup material and method for drilling |
| 02/19/1981 | WO1981000367A1 Entry material and method for drilling circuit boards |
| 05/27/1980 | US4204783 Machine for cutting holes with annular cutters |
| 11/27/1979 | US4175413 Methods and apparatuses for forming by frictional heat and pressure holes surrounded each by a boss in a metal plate or the wall of a metal tube |
| 04/03/1979 | US4147460 Method for piercing doubling plate for H-beam and tool for processing doubling plate for H-beam |
| 08/29/1978 | CA1037376A1 Apparatus and method for perforating roofing sheet material |
| 05/09/1978 | US4088417 Method and apparatus for high speed, high precision drilling and machining |
| 11/15/1977 | US4058176 Tool and method for drilling a hole with an increased cross-sectional area |
| 04/26/1977 | US4019826 Method for drilling circuit boards |
| 03/08/1977 | US4010807 Tool for forming a hole for a fastening element |
| 10/05/1976 | US3983773 Apparatus for perforating roofing sheet material |