| Patents for B24B 9 - Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor (9,298) |
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| 03/20/1991 | CN2073345U Machine tool for grinding ceramic |
| 03/19/1991 | US5000156 Method and device for dressing an inner peripheral blade in a slicing machine |
| 03/14/1991 | DE3928514A1 Grinding rounded edge on cylindrical workpiece - inclining grinding wheel axis to workpiece axis |
| 03/06/1991 | EP0415813A1 Device for blocking a lens blank |
| 03/06/1991 | CN2072461U Road reflection cylinder type lens treating machine |
| 02/26/1991 | US4995170 Contour reading device suitable for use on eyeglass frames |
| 02/21/1991 | DE4023246A1 Grinding edges of lenses - involves toothed belts to rotate upper and lower lens supports at same speed |
| 02/20/1991 | EP0413165A2 Device for deburring workpieces made out of plastics |
| 02/19/1991 | US4993896 Edge contouring system |
| 02/19/1991 | US4993196 Method for removing burrs from workpieces |
| 02/14/1991 | DE3933906A1 Centering arrangement operation for spectacle glasses - involves attaching data carrier contg. stored personal data of spectacle user to frame or packaging |
| 02/12/1991 | US4991305 Spectacle-lens-frame configuration measuring apparatus and article configuration measuring apparatus |
| 02/05/1991 | US4989653 Edging apparatus |
| 02/05/1991 | US4989373 Flat glass edging-bevelling machine |
| 01/29/1991 | US4987810 Edge sharpening |
| 01/23/1991 | EP0409760A1 Apparatus for centering and blocking ophtalmic lenses |
| 01/22/1991 | US4986035 Grinding wheel for the smoothing and polishing of glasses |
| 01/15/1991 | US4984392 Chamfering the notch of a semiconductor wafer |
| 01/09/1991 | EP0407340A1 Device for shaping a tube to be connected with a welding sleeve |
| 01/09/1991 | EP0406989A1 Profile-grinding unit |
| 01/08/1991 | US4982531 Method employing abrasive tools for the combined cutting and trimming of glass or crystal articles and an apparatus for carrying out the said method |
| 01/03/1991 | DE4020597A1 Machine for making spectacle lenses - has pattern of lens moved over tip of fixed stylus |
| 01/02/1991 | EP0405811A1 Method and machine for finishing commutators |
| 01/02/1991 | CN2068448U Butterfly cloth abrasion wheel |
| 01/01/1991 | US4980995 Method of faceting gemstones |
| 01/01/1991 | US4980993 Method and apparatus for manufacturing contact lens |
| 12/27/1990 | EP0404460A1 Notch grinder |
| 12/11/1990 | US4976573 Apparatus for chamfering planar plate |
| 12/05/1990 | EP0401161A1 Method and machine for manufacturing glass plates |
| 11/29/1990 | DE3916775A1 Machine for edge profiling of plate - has machining unit guided by four-bar chain linkage to avoid use of slideways |
| 11/27/1990 | US4972632 Device for centering of optic lenses in a mechanical mounting, in particular during edge cutting and bevelling |
| 11/19/1990 | CA2017198A1 Portable gem faceting kit |
| 11/14/1990 | CN2065535U Multi-functional surface grinder for diamond |
| 11/07/1990 | EP0396326A1 Method of processing substrate for semiconductor device |
| 10/31/1990 | EP0395256A2 Flat grind stage assembly for an automatic edge grinder |
| 10/31/1990 | EP0395255A2 A seal assembly for a wafer grinding machine |
| 10/31/1990 | CN1046486A Method and apparatus for bevelling interior angles of sheets of coloured or non-coloured plain glass, plate glass or flattened glass, and product obtained |
| 10/30/1990 | US4965964 Portable apparatus for processing marble tile |
| 10/24/1990 | EP0393349A1 Method and apparatus for bevelling interior angles of sheets of coloured or non-coloured plain glass, plate glass or flattened glass, and the product obtained |
| 10/23/1990 | US4964240 Piston ring grinder |
| 10/23/1990 | US4964239 Machine for grinding the edges of a lens |
| 10/10/1990 | EP0391757A1 Device for recalibrating an ophthalmic lens grinding machine for compensating the grinding-wheel abrasion |
| 10/09/1990 | US4961291 Glass holder tool |
| 10/04/1990 | DE3913378C1 Grinding dust removal system - uses rotating flexible roller pressed against workpiece |
| 09/26/1990 | EP0388720A2 Device for finishing plastic crates for bottles |
| 09/12/1990 | EP0386567A2 Apparatus for deburring work pieces made of thermosetting composite fibre material |
| 09/11/1990 | US4955165 Pipe tapering device |
| 09/11/1990 | US4955162 Portable gem faceting kit |
| 09/04/1990 | US4953377 Method and apparatus for cutting and deburring tubes |
| 08/28/1990 | US4952445 Marble tile trim |
| 08/28/1990 | US4951421 Device for centering of optic lenses in a mechanical mounting, in particular during edge cutting and bevelling |
| 08/16/1990 | EP0381675A1 Skate sharpening device. |
| 08/15/1990 | CN1044611A Working facet of gemstone |
| 08/07/1990 | US4945684 Method of and apparatus for processing peripheral edge of lens for spectacles |
| 07/31/1990 | US4944120 Dop for gemstone handling during manufacture |
| 07/25/1990 | EP0379426A2 Method for grinding a lens and apparatus thereof |
| 07/17/1990 | US4941291 Device for centering of optic lenses in a mechanical mounting, in particular during edge cutting and bevelling |
| 07/17/1990 | US4941245 Rotary file, support member and abrasive device |
| 07/12/1990 | WO1990007401A1 Guide for use in a grinding device |
| 06/27/1990 | EP0374587A2 Spectacle glasses bevel grinding machine |
| 06/27/1990 | EP0374151A1 Brush head for trimming or brushing machines. |
| 06/20/1990 | EP0373158A1 Process for grinding the edges of glass sheets |
| 06/19/1990 | US4934109 Method and apparatus for grinding the edge of a pipe |
| 06/13/1990 | EP0372832A1 An apparatus for fabricating glass plates |
| 06/13/1990 | DE3841493A1 Device for the edge-working of spectacle lenses |
| 06/12/1990 | CA1270118A1 Skate blade sharpening device |
| 06/06/1990 | EP0371130A1 Numerically controlled chamfering apparatus for glass plates |
| 06/06/1990 | CN1042685A Diamond sawing process |
| 06/05/1990 | US4930952 Glasses frame carrier for a reproducing machine |
| 05/31/1990 | WO1990005624A1 Diamond sawing process |
| 05/29/1990 | US4928439 Lens edging machine and method |
| 05/23/1990 | DE3938332A1 Spectacle lens grinding machine - has carriage supporting arm with attached measuring sensor for grinding weight regulation |
| 05/22/1990 | US4926588 Device for centering of optic lenses in a mechanical mounting, in particular during edge cutting and bevelling |
| 05/15/1990 | US4925347 Method of chamfering planar plate |
| 05/02/1990 | EP0365995A2 Apparatus for turning travelling glass sheets |
| 05/01/1990 | CA1268308A1 Method and apparatus for automatically buffing a golf ball |
| 04/26/1990 | DE3838898A1 Grinding machine for ceramic material |
| 04/19/1990 | DE3933940A1 Grinding bevelled edges of spectacle lens - by copying machine with stylus with conical tip |
| 04/11/1990 | EP0362838A2 A method of fabricating semiconductor devices |
| 04/11/1990 | EP0362413A1 Burr remover |
| 04/04/1990 | EP0360939A1 Method and apparatus for chamfering the notch of a notch-cut semiconductor wafer |
| 04/03/1990 | US4912880 Computerized tracing/edging system |
| 03/28/1990 | EP0360669A1 Template substitute for a grinding machine, especially a spectacle lens grinder |
| 03/28/1990 | EP0193516B1 Grinding tool for dressing and polishing glasses |
| 03/22/1990 | DE3929733A1 Deburring and chamfering machine - has mounting bores of different dia. for holder and tool drive unit |
| 03/21/1990 | EP0359084A2 Method and apparatus for manufacturing contact lenses |
| 03/20/1990 | US4909679 Plastic lens edge beveler |
| 03/20/1990 | US4908992 Chamfering machine, particularly for sheets of glass |
| 03/20/1990 | US4908991 For grinding ophthalmic glass |
| 03/15/1990 | DE3831082A1 Apparatus for deburring workpieces |
| 03/15/1990 | DE3830202A1 Glass-pane drive with constant feed rate in all grinding regions |
| 03/14/1990 | EP0358029A2 Grinding head particularly for chamfering-profiling machines for glass plate elements |
| 03/14/1990 | CN1007135B Compound processing method of electric spark and ultrasonic wave |
| 03/13/1990 | US4907370 Grinding stone dressing device |
| 03/06/1990 | US4905425 Method for chamfering the notch of a notch-cut semiconductor wafer |
| 03/01/1990 | DE3829488A1 Device for centring spectacle glasses and applying a holding part thereon as well as an application of the device |
| 02/22/1990 | EP0267240A4 Automatic ski tuning device. |
| 02/20/1990 | US4901477 Apparatus for abrasive machining |
| 02/20/1990 | CA1265932A1 Machine for grinding the edges of a sheet of glass, particularly for automobile windows |
| 02/15/1990 | DE3926532A1 Flat glass edge chamfering machine - with main drive equipment located above diamond wheel |