WO2008052917A1 - Verfahren zum herstellen von stahl-flachprodukten aus einem ein komplexphasen-gefüge bildenden stahl - Google Patents
Verfahren zum herstellen von stahl-flachprodukten aus einem ein komplexphasen-gefüge bildenden stahl Download PDFInfo
- Publication number
- WO2008052917A1 WO2008052917A1 PCT/EP2007/061388 EP2007061388W WO2008052917A1 WO 2008052917 A1 WO2008052917 A1 WO 2008052917A1 EP 2007061388 W EP2007061388 W EP 2007061388W WO 2008052917 A1 WO2008052917 A1 WO 2008052917A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- strip
- hot
- thickness
- cold
- rolled
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/041—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular fabrication or treatment of ingot or slab
- C21D8/0415—Rapid solidification; Thin strip casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Definitions
- the invention uses the possibility of strip casting to a high-strength, peritectically solidifying
- the hot strip produced according to the invention has high strengths of at least 800 MPa, without having to observe a special cooling cycle of the hot strip between the end of the hot rolling and the hasp, as described, for example, in EP 1 072 689 Bl is required by the need for a cooling break.
- the method according to the invention merely has to ensure that the hot rolling ends in a relatively narrow temperature window and that the reeling is also carried out in a precisely defined temperature range. In between there is a one-stage cooling down.
- the hot strip produced from the steel B was cold rolled after the coiling and pickling to a 0.7 mm thick cold strip and annealed at an annealing temperature of 800 0 C in the flow to recrystallize the strip.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Steel (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800400708A CN101528969B (zh) | 2006-10-30 | 2007-10-24 | 由形成复相显微组织的钢制备扁钢产品的方法 |
US12/447,626 US20090277546A1 (en) | 2006-10-30 | 2007-10-24 | Method for manufacturing flat steel products from a steel forming a complex phase microstructure |
JP2009533820A JP5232793B2 (ja) | 2006-10-30 | 2007-10-24 | 複合相ミクロ組織を形成する鋼からフラット鋼生成物を製造する方法 |
KR1020097007483A KR101458039B1 (ko) | 2006-10-30 | 2007-10-24 | 복상 조직을 형성하는 강으로부터 평판형 강 제품을 제조하는 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06123134.6 | 2006-10-30 | ||
EP06123134A EP1918402B1 (de) | 2006-10-30 | 2006-10-30 | Verfahren zum Herstellen von Stahl-Flachprodukten aus einem ein Komplexphasen-Gefüge bildenden Stahl |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008052917A1 true WO2008052917A1 (de) | 2008-05-08 |
Family
ID=37733972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/061388 WO2008052917A1 (de) | 2006-10-30 | 2007-10-24 | Verfahren zum herstellen von stahl-flachprodukten aus einem ein komplexphasen-gefüge bildenden stahl |
Country Status (10)
Country | Link |
---|---|
US (1) | US20090277546A1 (de) |
EP (1) | EP1918402B1 (de) |
JP (1) | JP5232793B2 (de) |
KR (1) | KR101458039B1 (de) |
CN (1) | CN101528969B (de) |
AT (1) | ATE432372T1 (de) |
DE (1) | DE502006003830D1 (de) |
ES (1) | ES2325960T3 (de) |
PL (1) | PL1918402T3 (de) |
WO (1) | WO2008052917A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10071416B2 (en) * | 2005-10-20 | 2018-09-11 | Nucor Corporation | High strength thin cast strip product and method for making the same |
WO2009048838A1 (en) * | 2007-10-10 | 2009-04-16 | Nucor Corporation | Complex metallographic structured steel and method of manufacturing same |
CN101928875A (zh) * | 2009-06-22 | 2010-12-29 | 鞍钢股份有限公司 | 具有良好成形性能的高强度冷轧钢板及其制备方法 |
WO2011100798A1 (en) | 2010-02-20 | 2011-08-25 | Bluescope Steel Limited | Nitriding of niobium steel and product made thereby |
CN102303212B (zh) * | 2011-06-24 | 2013-04-10 | 成都申信达机械有限公司 | 一种湿喷机衬板的制造工艺 |
CN103302255B (zh) * | 2012-03-14 | 2015-10-28 | 宝山钢铁股份有限公司 | 一种薄带连铸700MPa级高强耐大气腐蚀钢制造方法 |
CN103305770B (zh) * | 2012-03-14 | 2015-12-09 | 宝山钢铁股份有限公司 | 一种薄带连铸550MPa级高强耐大气腐蚀钢带的制造方法 |
CN103305759B (zh) * | 2012-03-14 | 2014-10-29 | 宝山钢铁股份有限公司 | 一种薄带连铸700MPa级高强耐候钢制造方法 |
JP6359534B2 (ja) * | 2012-08-03 | 2018-07-18 | タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップTata Steel Ijmuiden Bv | 熱間圧延鋼ストリップを製造するためのプロセスおよびそれにより製造された鋼ストリップ |
BR112016025380B1 (pt) * | 2014-04-30 | 2021-03-09 | Jfe Steel Corporation | folha de aço de alta resistência para recipientes e método para produção da mesma |
CN107438487B (zh) | 2014-12-19 | 2021-01-12 | 纽科尔公司 | 热轧轻型马氏体钢板及其制作方法 |
CN104480397B (zh) * | 2014-12-19 | 2017-06-23 | 山东钢铁股份有限公司 | 一种700MPa级热轧汽车结构用钢及其制备方法 |
DE102016202005A1 (de) * | 2016-02-10 | 2017-08-10 | Thyssenkrupp Ag | Nutzfahrzeugrad und Verwendung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998040522A1 (de) * | 1997-03-13 | 1998-09-17 | Thyssen Krupp Stahl Ag | Verfahren zur herstellung eines bandstahles mit hoher festigkeit und guter umformbarkeit |
EP1072689A1 (de) * | 1999-07-30 | 2001-01-31 | Usinor | Verfahren zum Herstellen von dünnen "TRIP"-Typ-Stahlbändern und also hergestellte Stahlbändern |
FR2798871A1 (fr) * | 1999-09-24 | 2001-03-30 | Usinor | Procede de fabrication de bandes d'acier au carbone, notamment d'acier pour emballages, et bandes ainsi produites |
WO2002026424A1 (en) * | 2000-09-29 | 2002-04-04 | Ishikawajima-Harima Heavy Industries Company Limited | Production of thin steel strip |
WO2002048410A1 (de) * | 2000-12-16 | 2002-06-20 | Thyssenkrupp Stahl Ag | Verfahren zum herstellen von warmband oder -blech aus einem mikrolegierten stahl |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5470529A (en) * | 1994-03-08 | 1995-11-28 | Sumitomo Metal Industries, Ltd. | High tensile strength steel sheet having improved formability |
HU220900B1 (en) * | 1996-07-12 | 2002-06-29 | Thyssen Stahl Ag | Hot-rolled steel strip and method of making it |
JP3931455B2 (ja) * | 1998-11-25 | 2007-06-13 | Jfeスチール株式会社 | 缶用鋼板およびその製造方法 |
CN1107122C (zh) * | 2000-02-29 | 2003-04-30 | 济南济钢设计院 | 奥贝马钢及其制备方法 |
AUPQ779900A0 (en) * | 2000-05-26 | 2000-06-22 | Bhp Steel (Jla) Pty Limited | Hot rolling thin strip |
AUPR047900A0 (en) * | 2000-09-29 | 2000-10-26 | Bhp Steel (Jla) Pty Limited | A method of producing steel |
CN1269986C (zh) * | 2000-10-19 | 2006-08-16 | 杰富意钢铁株式会社 | 镀锌钢板和它的制造方法,以及冲压成形制品的制造方法 |
JP3927384B2 (ja) * | 2001-02-23 | 2007-06-06 | 新日本製鐵株式会社 | 切り欠き疲労強度に優れる自動車用薄鋼板およびその製造方法 |
DE10128544C2 (de) * | 2001-06-13 | 2003-06-05 | Thyssenkrupp Stahl Ag | Höherfestes, kaltumformbares Stahlblech, Verfahren zu seiner Herstellung und Verwendung eines solchen Blechs |
US6878920B2 (en) * | 2002-06-28 | 2005-04-12 | Intel Corporation | Optical receiver circuit, method, and system |
WO2005095664A1 (ja) * | 2004-03-31 | 2005-10-13 | Jfe Steel Corporation | 高剛性高強度薄鋼板およびその製造方法 |
-
2006
- 2006-10-30 PL PL06123134T patent/PL1918402T3/pl unknown
- 2006-10-30 EP EP06123134A patent/EP1918402B1/de not_active Not-in-force
- 2006-10-30 DE DE502006003830T patent/DE502006003830D1/de active Active
- 2006-10-30 AT AT06123134T patent/ATE432372T1/de active
- 2006-10-30 ES ES06123134T patent/ES2325960T3/es active Active
-
2007
- 2007-10-24 CN CN2007800400708A patent/CN101528969B/zh not_active Expired - Fee Related
- 2007-10-24 JP JP2009533820A patent/JP5232793B2/ja active Active
- 2007-10-24 US US12/447,626 patent/US20090277546A1/en not_active Abandoned
- 2007-10-24 KR KR1020097007483A patent/KR101458039B1/ko active IP Right Grant
- 2007-10-24 WO PCT/EP2007/061388 patent/WO2008052917A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998040522A1 (de) * | 1997-03-13 | 1998-09-17 | Thyssen Krupp Stahl Ag | Verfahren zur herstellung eines bandstahles mit hoher festigkeit und guter umformbarkeit |
EP1072689A1 (de) * | 1999-07-30 | 2001-01-31 | Usinor | Verfahren zum Herstellen von dünnen "TRIP"-Typ-Stahlbändern und also hergestellte Stahlbändern |
FR2798871A1 (fr) * | 1999-09-24 | 2001-03-30 | Usinor | Procede de fabrication de bandes d'acier au carbone, notamment d'acier pour emballages, et bandes ainsi produites |
WO2002026424A1 (en) * | 2000-09-29 | 2002-04-04 | Ishikawajima-Harima Heavy Industries Company Limited | Production of thin steel strip |
WO2002048410A1 (de) * | 2000-12-16 | 2002-06-20 | Thyssenkrupp Stahl Ag | Verfahren zum herstellen von warmband oder -blech aus einem mikrolegierten stahl |
Non-Patent Citations (2)
Title |
---|
LINDENBERG H-U ET AL: "EUROSTRIP - STATE OF THE ART OF STRIP CASTING EUROSTRIP - STAND DER TECHNIK BEIM BANDGIESSEN", STAHL UND EISEN, VERLAG STAHLEISEN, DUSSELDORF, DE, vol. 121, no. 12, 14 December 2001 (2001-12-14), pages 97 - 104, XP001103986, ISSN: 0340-4803 * |
SENK D ET AL: "UMFORMEN UND KUEHLEN VON DIREKTGEGOSSENEM STAHLBAND IN-LINE ROLLING AND COOLING OF DIRECT CAST STEEL STRIP", STAHL UND EISEN, VERLAG STAHLEISEN, DUSSELDORF, DE, vol. 120, no. 6, 16 June 2000 (2000-06-16), pages 65 - 69, XP001118293, ISSN: 0340-4803 * |
Also Published As
Publication number | Publication date |
---|---|
EP1918402B1 (de) | 2009-05-27 |
CN101528969A (zh) | 2009-09-09 |
CN101528969B (zh) | 2012-01-11 |
KR20090090300A (ko) | 2009-08-25 |
PL1918402T3 (pl) | 2009-10-30 |
JP2010508433A (ja) | 2010-03-18 |
EP1918402A1 (de) | 2008-05-07 |
DE502006003830D1 (de) | 2009-07-09 |
KR101458039B1 (ko) | 2014-11-03 |
ES2325960T3 (es) | 2009-09-25 |
ATE432372T1 (de) | 2009-06-15 |
US20090277546A1 (en) | 2009-11-12 |
JP5232793B2 (ja) | 2013-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1918406B1 (de) | Verfahren zum Herstellen von Stahl-Flachprodukten aus einem mit Bor mikrolegierten Mehrphasenstahl | |
EP1918402B1 (de) | Verfahren zum Herstellen von Stahl-Flachprodukten aus einem ein Komplexphasen-Gefüge bildenden Stahl | |
EP1918403B1 (de) | Verfahren zum Herstellen von Stahl-Flachprodukten aus einem ein martensitisches Gefüge bildenden Stahl | |
EP2690183B1 (de) | Warmgewalztes Stahlflachprodukt und Verfahren zu seiner Herstellung | |
WO2006048034A1 (de) | Höherfestes, twip-eigenschaften aufweisendes stahlband oder -blech und verfahren zu dessen herstellung mittels “direct strip casting ' | |
WO2012095232A1 (de) | Verfahren zum herstellen eines warmgewalzten stahlflachprodukts | |
DE10259230A1 (de) | Verfahren zum Herstellen eines Stahlprodukts | |
EP2767601B1 (de) | Kaltgewalztes Stahlflachprodukt für Tiefziehanwendungen und Verfahren zu seiner Herstellung | |
DE60207591T2 (de) | Verfahren zur herstellung von geschweissten röhren und dadurch hergestelltes rohr | |
EP2840159B1 (de) | Verfahren zum Herstellen eines Stahlbauteils | |
WO2015117934A1 (de) | Hochfestes stahlflachprodukt mit bainitisch-martensitischem gefüge und verfahren zur herstellung eines solchen stahlflachprodukts | |
EP1918405B1 (de) | Verfahren zum Herstellen von Stahl-Flachprodukten aus einem mit Silizium legierten Mehrphasenstahl | |
WO2014016421A1 (de) | Kaltgewalztes stahlflachprodukt und verfahren zu seiner herstellung | |
EP2767602B1 (de) | Kaltgewalztes Stahlflachprodukt für Tiefziehanwendungen und Verfahren zu seiner Herstellung | |
EP1398390B1 (de) | Ferritisch/martensitischer Stahl mit hoher Festigkeit und sehr feinem Gefüge | |
EP1918404B1 (de) | Verfahren zum Herstellen von Stahl-Flachprodukten aus einem mit Aluminium legierten Mehrphasenstahl | |
EP1399598B2 (de) | Verfahren zum herstellen von hochfesten, aus einem warmband kaltverformten stahlprodukten mit guter dehnbarkeit | |
EP1453984B1 (de) | Verfahren zum herstellen von warmband oder -blech aus einem mikrolegierten stahl | |
EP1396549B1 (de) | Verfahren zum Herstellen eines perlitfreien warmgewalzten Stahlbands und nach diesem Verfahren hergestelltes Warmband | |
WO2020048599A1 (de) | Warmgewalztes stahlflachprodukt und verfahren zu seiner herstellung | |
EP1396550A1 (de) | Verfahren zum Herstellen eines Warmbandes | |
DE2636553B2 (de) | Alterungsbeständiger Tiefziehstahl mit sehr niedriger Streckgrenzenfestigkeit und Verfahren zu seiner Herstellung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200780040070.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07821751 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2009533820 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020097007483 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12447626 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07821751 Country of ref document: EP Kind code of ref document: A1 |