SE8002819L - Sammansatt kropp - Google Patents

Sammansatt kropp

Info

Publication number
SE8002819L
SE8002819L SE8002819A SE8002819A SE8002819L SE 8002819 L SE8002819 L SE 8002819L SE 8002819 A SE8002819 A SE 8002819A SE 8002819 A SE8002819 A SE 8002819A SE 8002819 L SE8002819 L SE 8002819L
Authority
SE
Sweden
Prior art keywords
layers
thickness
hard material
composition body
individual layers
Prior art date
Application number
SE8002819A
Other languages
English (en)
Other versions
SE454890B (sv
Inventor
K Dreyer
J Kolaska
H Grewe
N Reiter
Original Assignee
Krupp Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krupp Gmbh filed Critical Krupp Gmbh
Publication of SE8002819L publication Critical patent/SE8002819L/sv
Publication of SE454890B publication Critical patent/SE454890B/sv

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • C23C28/044Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/32Carbides
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/34Nitrides
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/36Carbonitrides
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40Oxides
    • C23C16/403Oxides of aluminium, magnesium or beryllium
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40Oxides
    • C23C16/405Oxides of refractory metals or yttrium
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/40Coatings including alternating layers following a pattern, a periodic or defined repetition
    • C23C28/42Coatings including alternating layers following a pattern, a periodic or defined repetition characterized by the composition of the alternating layers
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Vapour Deposition (AREA)
  • Laminated Bodies (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Powder Metallurgy (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
SE8002819A 1979-04-28 1980-04-15 Notningsbestendig sammansatt kropp for bearbetning av metalliska och icke metalliska material SE454890B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792917348 DE2917348C2 (de) 1979-04-28 1979-04-28 Verschleißfester Verbundkörper

Publications (2)

Publication Number Publication Date
SE8002819L true SE8002819L (sv) 1980-10-29
SE454890B SE454890B (sv) 1988-06-06

Family

ID=6069538

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8002819A SE454890B (sv) 1979-04-28 1980-04-15 Notningsbestendig sammansatt kropp for bearbetning av metalliska och icke metalliska material

Country Status (6)

Country Link
JP (1) JPS55145165A (sv)
AT (1) AT380492B (sv)
DE (1) DE2917348C2 (sv)
FR (1) FR2454903A1 (sv)
GB (1) GB2048960B (sv)
SE (1) SE454890B (sv)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL58548A (en) * 1979-10-24 1983-07-31 Iscar Ltd Sintered hard metal products having a multi-layer wearresistant coating
JPS5779169A (en) * 1980-11-06 1982-05-18 Sumitomo Electric Ind Ltd Physical vapor deposition method
CH659967A5 (de) * 1981-02-23 1987-03-13 Vni Instrument Inst Mehrschichtueberzug fuer spanabhebendes werkzeug.
CH647556A5 (fr) * 1981-07-02 1985-01-31 Stellram Sa Piece d'usure en materiau refractaire.
JPS586969A (ja) * 1981-07-06 1983-01-14 Mitsubishi Metal Corp 切削工具用表面被覆超硬合金部材
IL63802A (en) * 1981-09-11 1984-10-31 Iscar Ltd Sintered hard metal products having a multi-layer wear-resistant coating
DE3151413A1 (de) * 1981-12-24 1983-07-14 MTU Motoren- und Turbinen-Union München GmbH, 8000 München "schaufel einer stroemungsmaschine, insbesondere gasturbine"
AT377786B (de) * 1981-12-24 1985-04-25 Plansee Metallwerk Verschleissteil, insbesondere hartmetall -schneideinsatz zur spanabhebenden bearbeitung
CA1204638A (en) * 1982-05-20 1986-05-20 Vinod K. Sarin Coated composite silicon nitride cutting tools
CA1211323A (en) * 1982-05-20 1986-09-16 Vinod K. Sarin Coated silicon nitride cutting tools
JPS6011288A (ja) * 1983-06-30 1985-01-21 三菱マテリアル株式会社 表面被覆サイアロン基セラミツクス工具部材
JPS60238481A (ja) * 1984-05-14 1985-11-27 Sumitomo Electric Ind Ltd 多重層被覆超硬合金
US4619865A (en) * 1984-07-02 1986-10-28 Energy Conversion Devices, Inc. Multilayer coating and method
US4591418A (en) * 1984-10-26 1986-05-27 The Parker Pen Company Microlaminated coating
DE3512986A1 (de) * 1985-04-11 1986-10-16 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Viellagige, hochverschleissfeste hartstoffschutzschicht fuer metallische, stark beanspruchte oberflaechen oder substrate
JP2529190B2 (ja) * 1985-08-28 1996-08-28 住友電気工業株式会社 被覆超硬合金
FI854000L (fi) * 1985-10-25 1987-04-16 Vsesojuzny Nauchno-Issledovatelsky Instrumentalny Institut Skaerverktyg med en slitbestaendig belaeggning.
US4749629A (en) * 1987-01-20 1988-06-07 Gte Laboratories Ultrathin laminated oxide coatings and methods
AT387186B (de) * 1987-05-04 1988-12-12 Ver Edelstahlwerke Ag Beschichteter hartmetallkoerper
CA1327277C (en) * 1989-03-17 1994-03-01 William A. Bryant Multilayer coated cemented carbide cutting insert
US4984940A (en) * 1989-03-17 1991-01-15 Kennametal Inc. Multilayer coated cemented carbide cutting insert
SE9101953D0 (sv) * 1991-06-25 1991-06-25 Sandvik Ab A1203 coated sintered body
DE4239234A1 (de) * 1992-11-21 1994-06-09 Krupp Widia Gmbh Werkzeug und Verfahren zur Beschichtung eines Werkzeuggrundkörpers
DE19530517A1 (de) * 1995-08-19 1997-02-20 Widia Gmbh Verbundkörper und Verfahren zu dessen Herstellung
EP0845053B1 (de) * 1995-08-19 2001-10-10 Widia GmbH Verbundkörper und verfahren zu dessen herstellung
DE19530518A1 (de) * 1995-08-19 1997-02-20 Widia Gmbh Verfahren zur Herstellung von Multikomponenten-Carbonitrid-Hartstoffschichten und Verbundkörper
JP4185172B2 (ja) * 1997-06-19 2008-11-26 住友電工ハードメタル株式会社 被覆硬質工具
SE518151C2 (sv) * 1997-12-10 2002-09-03 Sandvik Ab Multiskiktbelagt skärverktyg
SE518134C2 (sv) * 1997-12-10 2002-09-03 Sandvik Ab Multiskiktbelagt skärverktyg
US7033682B1 (en) * 2001-12-28 2006-04-25 Ues, Inc. Coating solutions for titanium and titanium alloy machining
SE526603C3 (sv) 2003-01-24 2005-11-16 Sandvik Intellectual Property Belagt hårdmetallskär
EP1609883B1 (en) 2004-06-24 2017-09-20 Sandvik Intellectual Property AB Coated metal cutting tool
SE528108C2 (sv) 2004-07-13 2006-09-05 Sandvik Intellectual Property Belagt hårdmetallskär, speciellt för svarvning av stål, samt sätt att tillverka detsamma
SE528107C2 (sv) * 2004-10-04 2006-09-05 Sandvik Intellectual Property Belagt hårdmetallskär, speciellt användbart för höghastighetsbearbetning av metalliska arbetsstycken
SE528670C2 (sv) 2004-12-22 2007-01-16 Sandvik Intellectual Property Skär belagt med ett transparent färgskikt
SE528891C2 (sv) 2005-03-23 2007-03-06 Sandvik Intellectual Property Skär belagt med ett multiskikt av metaloxid
CN104540624B (zh) * 2012-08-10 2016-08-10 株式会社图格莱 被覆工具
US10100405B2 (en) * 2015-04-20 2018-10-16 Kennametal Inc. CVD coated cutting insert and method of making the same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE357984B (sv) * 1971-11-12 1973-07-16 Sandvik Ab
DE2263210B2 (de) * 1972-02-04 1977-03-17 Metallwerk Plansee AG & Co. KG, Reutte, Tirol (Österreich) Verschleissteil aus hartmetall, insbesondere fuer werkzeuge
SE357772B (sv) * 1972-08-18 1973-07-09 Sandvik Ab
AT328254B (de) * 1974-06-25 1976-03-10 Plansee Metallwerk Abwalzfraser
JPS5142029A (ja) * 1974-10-09 1976-04-09 Mitsubishi Metal Corp Hifukusoojusuruchokogokinbuhin
DE2525185C3 (de) * 1975-06-06 1986-04-17 Fried. Krupp Gmbh, 4300 Essen Hartmetallkörper
JPS5294812A (en) * 1976-02-06 1977-08-09 Mitsubishi Metal Corp Covered super hard throwaway tip
JPS5294813A (en) * 1976-02-06 1977-08-09 Mitsubishi Metal Corp Covered super hard throwaway tip
JPS52100376A (en) * 1976-02-20 1977-08-23 Mitsubishi Metal Corp Coated cutting tip of sintered hard alloy
FR2357321A1 (fr) * 1976-07-05 1978-02-03 Stellram Sa Revetement protecteur stratifie pour pieces d'usure et outils de coupe en metal dur
JPS5468779A (en) * 1977-11-11 1979-06-02 Sumitomo Electric Ind Ltd Coated super-hard alloy material
CH632944A5 (fr) * 1978-06-22 1982-11-15 Stellram Sa Piece d'usure en metal dur.

Also Published As

Publication number Publication date
DE2917348B1 (de) 1980-10-30
DE2917348C2 (de) 1984-07-12
GB2048960B (en) 1983-05-18
AT380492B (de) 1986-05-26
GB2048960A (en) 1980-12-17
JPS55145165A (en) 1980-11-12
SE454890B (sv) 1988-06-06
FR2454903B1 (sv) 1984-04-20
ATA212280A (de) 1982-10-15
FR2454903A1 (fr) 1980-11-21

Similar Documents

Publication Publication Date Title
SE8002819L (sv) Sammansatt kropp
DK306281A (da) Fibroese sammensatte materialer og deres fremstilling og anvendelse
ES268060Y (es) Un dispositivo para regular el espesor de la capa aplicada en el recubrimiento de tiras continuas de material circulantes.
SE8403429L (sv) Kropp med superhard beleggning
ATE54954T1 (de) Schneidwerkzeug.
FI73256B (fi) Malsegment.
AR220281A1 (es) Composicion de recubrimiento para formar capas superficiales particularmente con fines friccionantes y procedimiento para fabricar material compuesto laminado mediante dicha composicion
GB2130250B (en) A method for the manufacture of multilayer material having a functional layer applied on to a backing layer and a multilayer material made by the method
MX169302B (es) Panel de construccion fabricado en capas y procedimiento para su fabricacion
ES8501672A1 (es) Un metodo para fabricar una hoja de desprendimiento
BR8000452A (pt) Materiais estratificados a base de resina fenolica e processo para sua preparacao
SE8204608L (sv) Sammansatt elektropleterat foremal och forfarande for framstellning derav
EP0157422A3 (en) Veneer sheet ready for use
JPS569363A (en) Production of layer having surface composition of hg11xcdxte
JPS55128575A (en) Forming of coating layer to article by commercially available hard material surface and obtained article
JPS5614564A (en) Coating material forming surface layer and its manufacture
ATE24744T1 (de) Flexibler, flaechiger, sand enthaltender schichtkoerper zur aeusserlichen anwendung bei der koerperbehandlung.
ES540255A0 (es) Procedimiento para fabricar material en capas o piezas en capas
JPS563152A (en) Soldering and cutting tool with surface-covered hard alloy metal tip
FR2403827A1 (fr) Outil rotatif de broyage par impact
JPS57201773A (en) Foamed material for trim
FR2529511B3 (sv)
IT1170978B (it) Perfezionamento negli utensili di taglio in particolare per la rifinitura di ingranaggi e simili
IT1170457B (it) Dispositivo per l'incisione multipla di medaglioni, targhe e simili, atto a sostituire la singola punta tracciante dei pantografi utensili convenzionali
SE7900529L (sv) Hardmetallkropp med slitstarkt ytskikt

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8002819-4

Effective date: 19921108

Format of ref document f/p: F