| 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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| 03/15/1989 | EP0306571A1 Natural slate roofing tile and method of manufacturing same |
| 03/15/1989 | CN2034116U Lifting type parallel moving stone sawing machine |
| 03/15/1989 | CN1031743A Apparatus for cutting, drilling or similar machining stone. ores or similars |
| 03/09/1989 | WO1989001843A1 Abrasive tool and a method of making said tool |
| 03/09/1989 | DE3729006A1 Rotating radially beating rollers, balls or the like for removing/milling of rock or other materials |
| 03/09/1989 | DE3249844C2 Attachment device for treating road coverings |
| 03/08/1989 | CN2033737U Machine for sawing and cutling stone |
| 03/01/1989 | EP0077204B1 Error-correcting memory with low storage overhead and fast correction mechanism |
| 03/01/1989 | CN2033335U Multi-gear plating end milling cutter for ceramic |
| 03/01/1989 | CN2033334U Driller for tube made of cement |
| 02/28/1989 | US4807587 Process of forming openings |
| 02/23/1989 | WO1989001396A1 Device to cut, drill or similarly machine rock, ore, concrete or similar |
| 02/23/1989 | WO1989001395A1 Process for cropping bars of hard materials and equipment for carrying out the process |
| 02/23/1989 | DE3726994A1 Method and device for sawing reinforced concrete with a rotating steel blade |
| 02/15/1989 | EP0303313A1 Device for the cutting, drilling or similar working of stone, concrete or the like |
| 02/09/1989 | DE3724913A1 Method of manufacturing a diamond bandsaw blade, and diamond bandsaw blade manufactured according to this method |
| 02/08/1989 | EP0302202A2 Device for attaching fasteners |
| 02/08/1989 | CN2032193U Graphite renovation device |
| 02/08/1989 | CN2032129U Jade cutter |
| 02/08/1989 | CN2032124U Electric resonance cutter |
| 02/01/1989 | CN2031745U Suction adherence type miniature drilling machine for glass and ceramic |
| 01/31/1989 | US4800686 Fabrication method for chamfered hole |
| 01/26/1989 | DE3723813A1 Mobile device for flame cleaning |
| 01/26/1989 | DE3723812A1 Device for flame cleaning |
| 01/26/1989 | DE3723764A1 Method of manufacturing a stone ball |
| 01/26/1989 | DE3722546A1 Process for cutting, scoring or detaching materials, e.g. structural parts |
| 01/25/1989 | CN2031348U Series housing drill for reinforced concrete pre-fabricated member |
| 01/18/1989 | EP0299501A1 Device for scoring and fracturing ceramic tiles |
| 01/18/1989 | EP0299047A1 A sawing machine. |
| 01/11/1989 | CN2030539U Combined diamond disc saw |
| 01/10/1989 | US4797025 Device for cutting a receptacle in pavement to receive a reflector |
| 01/05/1989 | DE3720853A1 Mobile drive bearing arrangement with centring discs |
| 01/05/1989 | DE3720179A1 Stone-working apparatus |
| 01/05/1989 | DE3720178A1 Tension compensation for the drive belt of a stone-working apparatus |
| 12/28/1988 | EP0185744B1 A method and a tool for increasing the width in the clear of a chimney |
| 12/27/1988 | US4793828 Tool with diamond particle insert; no graphitization |
| 12/27/1988 | US4793732 Pavement slot cutter |
| 12/20/1988 | US4792190 Machine for cutting curbstones, sidewalks or the like |
| 12/15/1988 | DE3806235A1 Sawing tool |
| 12/14/1988 | CN88202259U Clipper of diamond saw for sawing thin stone plate |
| 12/14/1988 | CN87205347U Computer control device for marble saw machine |
| 12/07/1988 | EP0294267A1 Method for separating a piece of predetermined shape from a block of material, for example a rock |
| 12/07/1988 | EP0293399A1 Guiding rail and link chain for chain saws. |
| 12/01/1988 | WO1988009251A1 Sawing tool |
| 12/01/1988 | DE3723617C1 Method of manufacturing an imitated Solnhofen marble structure, as well as device for implementing the method |
| 11/30/1988 | EP0293327A2 Tool holder |
| 11/30/1988 | EP0292489A1 Apparatus for modifying building blocks |
| 11/30/1988 | CN88210717U Porcelain tile shearer |
| 11/30/1988 | CN88100817A Process for manufacture of semiconductor device |
| 11/29/1988 | US4787363 Wire sawing method for reinforced concrete structures |
| 11/29/1988 | US4787362 Abrasive particles embedded in resin matrix on outer edges; for slicing silicon wafers |
| 11/24/1988 | DE3716339A1 Method and apparatus for cutting and palletising bricks |
| 11/22/1988 | US4786111 Apparatus and method for delivering liquid coolant to drum mounted cutting tools |
| 11/22/1988 | US4785893 Boom operated demolition apparatus and method of breaking composite material |
| 11/17/1988 | WO1988008781A1 Method of and apparatus for manufacturing a faced block material |
| 11/17/1988 | EP0290810A2 Disc-type milling cutter having plural cutting teeth |
| 11/16/1988 | CN86210135U Vertical rotary band-sawing machine for working stone |
| 11/09/1988 | EP0289521A1 Blade shaft drive assembly |
| 11/03/1988 | WO1988008363A1 Wafering device and method of using same |
| 11/03/1988 | DE3812591A1 Apparatus for sawing blocks of stone |
| 10/26/1988 | EP0287847A2 Cutting tool |
| 10/25/1988 | US4779603 Brick saw container |
| 10/18/1988 | US4778304 Pavement joint reworking apparatus |
| 10/18/1988 | US4777723 Abrasive pipe saw |
| 10/12/1988 | EP0285774A1 Device to bore holes with undercut |
| 10/11/1988 | US4776316 Wafering device and method of using same |
| 10/06/1988 | DE3709224A1 Natural-stone-panel element |
| 10/04/1988 | US4774930 Anti-scuff boots for tile cutting equipment |
| 10/04/1988 | CA1242587A1 Sintered polycrystalline diamond compact construction with integral heat sink |
| 09/28/1988 | EP0284593A1 Cutting jib |
| 09/28/1988 | EP0284391A1 Stripping machine cutter finger assembly |
| 09/28/1988 | EP0283674A1 Stone parting device |
| 09/28/1988 | EP0283605A1 Cutter tool tip inserts |
| 09/28/1988 | EP0102364B1 Tile cutting apparatus |
| 09/27/1988 | US4773951 Method of manufacturing wafers of semiconductor material |
| 09/13/1988 | US4770156 Apparatus for cutting substantially flat ceramic pieces |
| 09/07/1988 | WO1988006722A1 Surface sampling device |
| 09/07/1988 | EP0281004A1 Cutting segment for a saw for machining stone |
| 09/07/1988 | EP0280835A1 Hollow drill tool |
| 09/06/1988 | US4769201 Method of cutting grooves in concrete with a soft concrete saw |
| 09/06/1988 | US4768599 Drill bit for undercutting a blind bore |
| 08/31/1988 | EP0279949A1 Process for manufacturing semiconductor components |
| 08/30/1988 | US4766875 Endless wire saw having material recovery capability |
| 08/25/1988 | WO1988006070A1 Undercutting drill |
| 08/24/1988 | EP0279305A2 Device for cutting construction material by means of an abrasive cable or wire |
| 08/23/1988 | US4765333 Surgical methods and apparatus for bone removal |
| 08/23/1988 | US4765307 Guide pulley base for wire saw |
| 08/18/1988 | DE3803910A1 Drill bit |
| 08/18/1988 | DE3703311A1 Process for identification of pipes, iron or cables laid under plaster during performance of drilling work in walls, ceilings or floors and device for carrying out the process |
| 08/17/1988 | EP0278231A1 Device for working stone |
| 08/16/1988 | US4763637 Stone saw |
| 08/11/1988 | DE3702515A1 Process for producing paving stones and kerbstones |
| 08/10/1988 | EP0277827A1 Tile parting device |
| 08/09/1988 | US4762422 Device for automatically controlling the density and viscosity of the abrasive mixture and the quantity of metallic middlings used in the sawing of granite or hard stone |
| 08/04/1988 | DE3702239A1 Apparatus for cutting plate-shaped components, in particular tiles |
| 08/03/1988 | EP0276310A1 Diamond drill for working hard brittle materials |
| 08/03/1988 | CN87204909U Roll modelling-tool for square block forming |
| 08/02/1988 | US4761038 Surface working accessory |
| 07/28/1988 | WO1988005369A1 A sawing machine |
| 07/28/1988 | DE3700799A1 Double-shaft multi-blade circular saw for cross-cuts and individual cuts |