| Patents for B28D 1 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor (14,003) |
|---|
| 07/05/1990 | DE3843379A1 Method of manufacturing precisely plane-parallel bricks |
| 07/04/1990 | EP0376676A2 Rotary substrate for a rotary blade |
| 07/04/1990 | EP0376128A1 A cable with guided diamond inserts for cutting stone and marble materials, and fixed guide device therefor |
| 07/03/1990 | US4938642 Portable electric router |
| 07/03/1990 | US4938538 Excavating tool cutting insert |
| 07/03/1990 | US4938201 Saw for cutting uncured concrete |
| 07/03/1990 | CA1271230A1 Method and apparatus for treating a surface of granite with a high temperature plasma jet |
| 06/27/1990 | EP0375453A1 Scabbler bits |
| 06/27/1990 | EP0374199A1 Adjustable support for cutting apparatus |
| 06/26/1990 | US4936284 Concrete saw |
| 06/21/1990 | DE3842548A1 Method of widening pre-made bores |
| 06/21/1990 | DE3842377A1 Boring tool for widening pre-bored holes |
| 06/21/1990 | DE3842376A1 Device for boring chimney shafts |
| 06/21/1990 | DE3841871A1 Method for drilling holes in masonry or concrete |
| 06/19/1990 | US4934616 Crushing tongs for clearing buildings, particularly walls made from reinforced concrete |
| 06/13/1990 | EP0372141A2 Diamond disc for cutting hard or abrasive products |
| 06/13/1990 | DE3940102A1 Light-wt. panel with natural stone surface - made of specified lamination of veneer and carrier layers |
| 06/12/1990 | US4932389 Slicing apparatus with work-feeding mechanism in feedback control |
| 06/06/1990 | CN1042685A Diamond sawing process |
| 06/05/1990 | US4930585 Device for drilling borehole undercuts |
| 06/05/1990 | US4930487 Cement cutting blade |
| 06/05/1990 | US4930486 Blade cutting method for hard brittle material |
| 05/31/1990 | WO1990005624A1 Diamond sawing process |
| 05/31/1990 | WO1990005615A1 Pallet cutting machine |
| 05/30/1990 | EP0370731A1 Pallet cutting machine |
| 05/30/1990 | EP0370204A1 Drilling device for producing a drilled hole with a recess |
| 05/29/1990 | US4929128 Masonry drill assembly |
| 05/29/1990 | US4929127 Drill bit for producing drilled holes with an undercut |
| 05/29/1990 | US4928662 Skid plate for cutting unhardened concrete |
| 05/29/1990 | US4928432 Rods precision cutting-off and end surface grinding machine |
| 05/23/1990 | EP0369606A1 Shaft excavation system |
| 05/23/1990 | EP0276310B1 Diamond drill for working hard brittle materials |
| 05/17/1990 | WO1990005214A1 Improvements in or relating to surface treatment machines |
| 05/17/1990 | WO1990005053A1 Abrasion-type splitting unit |
| 05/17/1990 | WO1990005052A1 Tile cutter |
| 05/16/1990 | EP0368184A1 Device for wet machining, particularly for cutting stone |
| 05/16/1990 | EP0367951A1 Miller for removing a road surfacing consisting of asphalt, concrete or the like along any pattern |
| 05/16/1990 | EP0238648B1 Process and device for making deep cuts in concrete or similar material |
| 05/16/1990 | CN2057137U Manual ceramic tile cutting-off machine |
| 05/16/1990 | CN1042109A Drilling device to produce drill holes with undercut |
| 05/15/1990 | US4924951 Manhole cutter |
| 05/15/1990 | US4924843 Masonry saw jig |
| 05/10/1990 | DE3935589A1 Mechanism enlarging chimney bore by rotary tool - inserts angular drive through inspection aperture in chimney base, with tool moved from top to base |
| 05/09/1990 | CN1041906A Drilling device for producing drill holes with undercut |
| 05/08/1990 | US4923344 Coupling system for boring tools |
| 05/08/1990 | US4922886 Tile parting device |
| 05/02/1990 | EP0366056A2 Internal diameter saw blade |
| 05/02/1990 | EP0365843A1 Novel sawblade segments utilizing polycrystalline diamond grit |
| 05/02/1990 | EP0365796A2 Drilling device for making holes with undercuttings |
| 05/01/1990 | US4921308 Mobile machine suspension system |
| 05/01/1990 | US4920947 Chain saw components and system for cutting masonry and the like |
| 05/01/1990 | US4920946 Blade cutting apparatus for hard brittle material |
| 05/01/1990 | US4920723 Hollow granite box beam and method of forming |
| 04/26/1990 | DE3835794A1 Process for producing a structured ceramic sheet or a ceramic body built up of such sheets |
| 04/18/1990 | EP0364322A1 Cable-type cutting system for sawing solid bodies |
| 04/18/1990 | EP0363617A1 Drilling device for producing drilled holes with recesses |
| 04/17/1990 | US4916820 Circle and strip cutting system |
| 04/11/1990 | EP0363313A2 Hollow stone-drilling tool |
| 04/11/1990 | EP0362292A1 Device to cut, drill or similarly machine rock, ore, concrete or similar |
| 04/11/1990 | EP0258275B1 Boom operated demolition apparatus |
| 04/10/1990 | US4915182 Cutter elements for hollow drill bit |
| 04/05/1990 | DE3929609A1 Mounting for round shafted chisel - has hard metal lined seating which extends its useful life |
| 04/05/1990 | DE3915916A1 Grinding tool for cutting semiconductor crystals - consists of disc with central hole and with ring of fixing holes near it periphery with edge of central hole covered with binding material |
| 04/04/1990 | EP0362084A1 Process for waterproofing quarry products by using a silicone emulsion |
| 03/28/1990 | CN1040757A Drilling apparatur for producing drilled holes having undercut |
| 03/27/1990 | US4911253 Core and water collector |
| 03/27/1990 | US4911188 Hydraulic ceiling-concrete remover |
| 03/27/1990 | US4911138 Apparatus for producing composite panels |
| 03/27/1990 | CA1266969A1 Inclined cutter for surface cleaning head |
| 03/22/1990 | WO1990002638A1 Skid plate for concrete saw |
| 03/21/1990 | CN1040535A 锯 Saw |
| 03/20/1990 | US4909234 Cutter |
| 03/14/1990 | EP0358615A1 Diamond saw blade |
| 03/14/1990 | EP0358526A2 Abrasive compacts |
| 03/14/1990 | EP0358112A1 Cutter jib for cutting machines for cutting rock, concrete, etc. |
| 03/08/1990 | DE3829216A1 Tool for producing a thread-like groove |
| 03/07/1990 | EP0356923A1 Saw |
| 03/07/1990 | CN2053975U Boring and drilling machine |
| 03/06/1990 | US4905921 Cutting device |
| 03/06/1990 | US4905359 Apparatus for forming slide surfaces on track for electromagnetically levitated vehicles |
| 02/28/1990 | EP0356387A1 Device for adjustably mounting rails on a base |
| 02/28/1990 | EP0356097A2 Tool insert |
| 02/28/1990 | EP0355436A2 Sawblade segments containing fine diamond or cubic boron nitride particles |
| 02/28/1990 | EP0355321A1 Device for manufacturing bore holes with undercutting |
| 02/28/1990 | EP0355196A1 Rod cut-off and end surface grinding machine |
| 02/27/1990 | US4903785 Drilling and chiseling tool bit |
| 02/27/1990 | US4903680 Skid plate for concrete saw |
| 02/22/1990 | DE3828030A1 Frame-saw blade holder for tightening frame-saw blades for sawing blocks of stone |
| 02/22/1990 | DE3827933A1 Circular saw blade for dry sawing |
| 02/21/1990 | CN1006872B Device for the automatic and continuous correction of the centres of oscillation in a pendulant frame for the cutting of marbles granites and hard stones |
| 02/15/1990 | DE3911947A1 Road surface milling machine - has milling roller adjustable for width on spot to suit requirements |
| 02/13/1990 | US4900094 Adjustable plunge-cut road saw mechanism |
| 02/13/1990 | US4899720 Machine for cutting stone materials |
| 02/07/1990 | CN2052339U Miniature multipurpose cutter for hard-material |
| 02/06/1990 | US4898056 Method and tool for punching plaster plates |
| 02/01/1990 | DE3828228A1 Hydraulic saw tightener with minimum residual pressure |
| 01/31/1990 | EP0352546A2 Core drill bit |
| 01/30/1990 | US4897121 Removal process of asbestos-filled linings or coatings |
| 01/30/1990 | US4896648 Guide rail and link chain for chain saw |
| 01/30/1990 | US4896647 Cutting tool system for cutting stone and method of cutting same |