| Patents for B28D 1 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor (14,003) |
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| 08/23/1989 | EP0328610A1 Process for cropping bars of hard materials and equipment for carrying out the process |
| 08/16/1989 | EP0328133A2 Cutting machine |
| 08/16/1989 | CN2042787U 材料切割机 Material Cutting Machine |
| 08/15/1989 | US4856719 Cutting arm |
| 08/15/1989 | US4856233 Method for sampling a workpiece |
| 08/15/1989 | US4856173 Method of the formation of slide surfaces on a track for electromagnetically levitated vehicles |
| 08/10/1989 | DE3802340A1 Cut-off disc |
| 08/08/1989 | US4855177 Composite panel |
| 08/08/1989 | US4854788 Drill |
| 08/08/1989 | US4854296 Machine for cutting building materials by means of an abrasive cable or wire |
| 08/08/1989 | US4854295 Wear resistant abrasive cutting wheel |
| 08/03/1989 | DE3815300C1 Method and apparatus for the retrospective lowering of kerbstones |
| 08/03/1989 | DE3802582A1 Method for cutting concrete parts, in particular concrete pipes, preferably with a large clear diameter and device for implementing the method |
| 08/02/1989 | EP0325733A2 Drilling device for making holes with undercuttings |
| 08/02/1989 | EP0325681A1 Cutter for impact-type cutting machine |
| 08/01/1989 | US4852946 Surface working accessory and method |
| 08/01/1989 | US4852304 Apparatus and method for slicing a wafer |
| 07/27/1989 | DE3801603A1 Process for producing composites comprising a layer of natural stone and a reinforcing layer |
| 07/26/1989 | EP0325249A2 Process for the structural reinforcement of fragile articles made of stone or agglomerated stone |
| 07/26/1989 | EP0325087A1 Tool holder and tool for boring and chiseling machine |
| 07/20/1989 | DE3800341A1 Cutter blade for slate-dressing machine |
| 07/18/1989 | US4848845 Steerable self-regulating concrete cutting saw |
| 07/18/1989 | US4848309 Masonry punch |
| 07/18/1989 | US4848308 Stoneworking or cutting device |
| 07/13/1989 | DE3743511A1 Process for producing thin panels from a cuboid of natural or cast stone, and panel produced by this process |
| 07/12/1989 | CN2040847U Segment-interchangeable multi-motion diamond saw blade |
| 07/11/1989 | US4845896 Surface sampling device |
| 07/06/1989 | DE3839546A1 Slate-dressing machine |
| 07/06/1989 | DE3743643A1 Method for directed separation of a monolithic object |
| 07/05/1989 | EP0323281A1 Cutting blade for a slate trimmer |
| 07/04/1989 | US4843766 Cutting tool having concentrically arranged outside and inside abrasive grain layers and method for production thereof |
| 07/04/1989 | CA1256717A1 Tool holder for drilling and chiselling tools |
| 06/28/1989 | EP0322214A1 Abrasive product |
| 06/28/1989 | EP0321673A2 Drill |
| 06/28/1989 | EP0321492A1 Chain saw. |
| 06/28/1989 | EP0187737B1 Method of machine cutting silicon metal particulates with si3n4 |
| 06/27/1989 | US4841842 Apparatus for scabbling concrete |
| 06/27/1989 | CA1256293A1 Cutting tool |
| 06/22/1989 | DE3741911A1 Buckle for mill saw blades for cutting with steel shot |
| 06/22/1989 | DE3726819A1 Apparatus for producing a joint |
| 06/21/1989 | EP0321395A2 Coupling device for a tubular cutter for working concrete and stone |
| 06/20/1989 | US4840431 Portable rotary power saw |
| 06/14/1989 | EP0320456A2 Belt-configured saw for cutting slots into stones |
| 06/13/1989 | US4838742 Method and apparatus for making an undercut drilled hole in a fixed base |
| 06/13/1989 | US4838614 Method of excavation and apparatus therefor |
| 06/13/1989 | US4838363 Rock-breaking apparatus |
| 06/07/1989 | EP0319196A2 A machine for cutting stone or other materials |
| 06/06/1989 | US4836494 Device for mounting a rail or the like on a surface |
| 06/06/1989 | CA1255106A1 Abrasive products |
| 05/31/1989 | EP0318445A1 Power Sawblades for abrasive materials |
| 05/30/1989 | US4834462 Cutter for impact-type cutting machine |
| 05/24/1989 | EP0316389A1 Bandsaw. |
| 05/23/1989 | US4832412 Machine for cutting pavement |
| 05/23/1989 | US4832411 Method and apparatus for cutting reinforced concrete |
| 05/23/1989 | US4831801 Process for manufacturing construction elements, their composition, reinforcement and means for mounting same |
| 05/18/1989 | DE3738083A1 Rotating scraper tool for working surfaces |
| 05/18/1989 | DE3738016A1 Saw blade |
| 05/17/1989 | EP0315728A1 Tile cutting device |
| 05/16/1989 | US4829976 Tool for cutting tiles in earthenware or similar materials |
| 05/11/1989 | DE3736302A1 Coupling, in particular for diamond drilling bit with stem pipe and pipe-thread connection |
| 05/10/1989 | EP0315601A2 Cutting device for absestos cement or similar material slabs |
| 05/10/1989 | EP0314954A2 Motor-driven hand tool for milling grooves in walls or the like |
| 05/09/1989 | US4828052 Ultrasonic drilling apparatus |
| 05/09/1989 | US4827625 Template for cutting tiles and the like |
| 05/03/1989 | EP0314263A1 Mining method and apparatus |
| 05/03/1989 | EP0314123A2 Connector, especially for diamond core bit with tubular part and threaded connection |
| 05/03/1989 | EP0313714A1 Apparatus and method for slicing a wafer |
| 05/03/1989 | CN2036893U Multiblade bidirection stone-sawing machine with diamond saw disk |
| 05/02/1989 | CA1253420A1 Machine for cutting curbstones, sidewalks or the like |
| 04/27/1989 | DE3735529A1 Sawing machine for cutting through stone blocks or hard-material blocks |
| 04/27/1989 | DE3733949A1 Device for manufacturing stone-granulated paving stones and plates |
| 04/26/1989 | EP0313524A1 Method of treatment for natural and artificial lapideous materials and the like by means of abrasives |
| 04/26/1989 | EP0312947A1 Sawing machine for cutting stone or hard material blocks |
| 04/26/1989 | CN2036480U Minitype portable drilling machine |
| 04/20/1989 | WO1989003290A1 Sawing machine for cutting blocks of stone or hard material |
| 04/20/1989 | WO1989003168A2 Improved machining system |
| 04/19/1989 | CN2036098U Cutting machine for hard brittle material |
| 04/19/1989 | CN2036097U Head for diamond saw bit |
| 04/18/1989 | US4822661 Lightweight stone furniture |
| 04/18/1989 | US4822107 Cutter and method to remove surface coatings |
| 04/18/1989 | US4821703 Opening method for reinforced concrete wall |
| 04/13/1989 | DE3733352A1 Parallelogram guide frame |
| 04/12/1989 | EP0311422A1 A method of drilling a substrate |
| 04/05/1989 | EP0310074A2 Milling device to be affixed to a mobile apparatus |
| 04/05/1989 | EP0309660A1 Frame saw blade |
| 04/05/1989 | CN1032131A Masonry drill tip with strong and chamfered cutting edges |
| 04/04/1989 | US4817581 Adjustable support for cutting apparatus |
| 04/04/1989 | US4817341 Cutting tool having concentrically arranged outside and inside abrasive grain layers and method for production thereof |
| 03/30/1989 | DE3730722A1 Holder for clamping frame saw blades for cutting thin stone slabs |
| 03/28/1989 | US4815904 Drilling assembly for making boreholes with undercuts |
| 03/23/1989 | DE3730720A1 Hydraulic saw tensioner for cutting very thin plates |
| 03/23/1989 | DE3730693A1 Method and arrangement for binding the splitting dust in block-splitting machines |
| 03/22/1989 | EP0308213A2 Improvements in apparatus for scabbling concrete |
| 03/22/1989 | EP0307901A2 Gang saw for the multiple lap-cutting of rod-like or block-like work pieces into discs |
| 03/22/1989 | CN2034517U Spoke type circular saw sheet for stone materials |
| 03/21/1989 | US4813313 Apparatus for demolishing a reactor shield wall |
| 03/16/1989 | DE3729135A1 Process for cutting, storing or detaching materials, e.g. structural parts |
| 03/16/1989 | DE3728233A1 Cut-off wheel, in particular a diamond cut-off wheel |
| 03/16/1989 | DE3725725C1 Road surface cutting machine - has cutter shaft as short pot, whose outer surface carries concentric roller cutter ring |
| 03/16/1989 | DE3718281A1 Process and apparatus for producing a joint between two buildings |