EP0741190B1 - Kühlplatten für Schachtöfen - Google Patents
Kühlplatten für Schachtöfen Download PDFInfo
- Publication number
- EP0741190B1 EP0741190B1 EP96106335A EP96106335A EP0741190B1 EP 0741190 B1 EP0741190 B1 EP 0741190B1 EP 96106335 A EP96106335 A EP 96106335A EP 96106335 A EP96106335 A EP 96106335A EP 0741190 B1 EP0741190 B1 EP 0741190B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- side flanges
- cooling plate
- vertical
- horizontal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 125
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 20
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 4
- 239000002826 coolant Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims 4
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 239000002994 raw material Substances 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 239000000725 suspension Substances 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/24—Cooling arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
Definitions
- the invention relates to a cooling plate system for with a refractory lining shaft furnaces, in particular blast furnaces, the respective cooling plates made of copper or a low-alloy copper alloy with inside arranged coolant channels exist from a forged or rolled ingot are made and the cooling channels run vertically Blind holes are, with additional if necessary on the edge vertical and arranged in the cooling plate horizontal blind bores of smaller diameter or with a cooling element arranged on the cooling plate with vertical blind holes, each on End with horizontal blind holes are connected.
- Such copper cooling plate systems are usually between the furnace jacket and the furnace lining and connected to the cooling system of the shaft furnace.
- the Cooling plates On the side facing the inside of the stove are the Cooling plates largely with refractory material Mistake.
- Cast copper plates are known in which the Cooling channels either through cast steel pipes are formed or cast directly.
- the structure of copper casting is not as homogeneous and dense as that of forged or rolled copper. Consequently the heat conduction of copper casting is also worse and the strength less.
- For the cast pipes prevents an oxide layer between the pipe and the copper block the heat conduction.
- a cooling plate is known from a forged or rolled ingot is made and where the cooling channels are vertical running blind holes, which through mechanical deep drilling are introduced.
- the structure the cooling plate is much denser and more homogeneous than that of a cast copper plate; Blowholes, like at Cast copper plates that occur frequently are excluded.
- the strength values are higher than that of cast copper plates.
- the target position of the holes according to height and side is adhered to exactly and thereby ensures even heat dissipation.
- the cooling plate is facing the inside of the oven Side with webs and grooves and can be fireproof Stones or with a refractory ramming paste to be lined. This will make the cooling surface of the Plate reduced and in case of wear or the loss of the refractory furnace lining becomes the Heat removal from the oven is limited. Cooling the Plate should be so intense that the temperature of the hot plate side far below the softening temperature is held by copper.
- the object of the invention is therefore a cooling system consisting of copper cooling plates create where vertically next to each other or copper cooling plates arranged horizontally one above the other so close inside a shaft furnace be that the heat dissipation also in the transition of Cooling plates take place evenly, so that there too Cooling the refractory furnace lining and the Furnace is guaranteed.
- cooling plates for the formation of a horizontally arranged cooling plate system at least three cooling plates, for the formation of one complete horizontal cooling ring within the Oven tanks are a variety of cooling plates for which Formation of a limited cooling area are at least two cooling plates required.
- One of the two cooling plates of the system according to claim 1 is therefore with double-sided, vertical and horizontal side flanges and with horizontally arranged, the Bars and grooves on the inside of the furnace Heat sink between the side flanges other cooling plate is also with bilateral, vertical and horizontal side flanges and with horizontally arranged, facing the furnace interior Ridges and grooves on the heat sink and the Side flanges or only the vertical side flanges Mistake.
- One of the two cooling plates according to claim 2 with double-sided, vertical side flanges or with double-sided, horizontal side bottles and with horizontally arranged, facing the furnace interior Bars and grooves on the heat sink between the vertical or horizontal Side flanges, the other cooling plate also with vertical side flanges on both sides or with horizontal side flanges on both sides and with the furnace interior arranged horizontally facing ridges and grooves on the heat sink and the vertical or horizontal side flanges.
- Cooling plates formed without horizontal side flanges become. The cooling plates however, they are laid joint to joint.
- the invention is based on schematic Exemplary embodiments explained in more detail.
- Figures 1 and 2 show a longitudinal section and a cross section of a first cooling plate (1).
- the webs (9) and Grooves (10) are only limited to the heat sink (3), in which the vertical blind holes (4) are incorporated for the cooling water.
- Figures 3 and 4 show a longitudinal section and a cross section of another cooling plate (2) with horizontal Side flanges (8).
- the webs (9) and grooves (10) are both on the heat sink (3) and on the side elaborated vertical flanges (6) arranged, while the vertical blind holes (4) for the cooling water is limited to the heat sink (3).
- a recess (13) is shown in FIG. 4 for Inclusion of a trunnion attached to the furnace wall on the opposite of the webs (9) and grooves (10) worked out narrower outside.
- Fig. 5 shows the side view of a first cooling plate (1) with horizontal side flanges worked out above and below (7), the direction of the furnace (11) arranged are.
- the heat sink (3) is alternately webs (9) and grooves (10) arranged.
- the webs (9) and grooves (10) are expediently dovetail-shaped, to give the fireproof filling a better hold.
- the cooling plate faces the blast furnace shell (11) facing side a recess (13) into which a Carrying pin (12) engages that on the blast furnace shell (11) is welded.
- Fig. 6 shows the side view of another cooling plate (2) with horizontal side flanges worked out above and below (8), which are arranged towards the center of the furnace.
- the webs (9) and grooves (10) are analogous to FIG. 5 arranged.
- Fig. 7 shows a first cooling plate (1) with only laterally arranged vertical flanges (5).
- the bridges (9) and grooves (10) are only on the heat sink (3) limited, in the vertical blind holes (4) are incorporated for the cooling water flow.
- Threaded holes (16) are in the flanges (5) introduced to create a detachable connection Fastening elements between a first cooling plate (1) and produce another cooling plate (2) according to FIG. 9 can.
- Fig. 8 shows another cooling plate (2) with only laterally arranged vertical flanges (6).
- the webs (9) and Grooves (10) are both on the heat sink (3) and on the side flanges (6) arranged while the vertical blind holes (4) for the cooling water on the heat sink (3) are limited.
- Fastening elements between a first cooling plate (1) and produce another cooling plate (2) according to FIG. 9 can.
- a longitudinal section of two interconnected cooling plates (1,2) shows Fig. 9.
- the webs (9) and Grooves (10) of the two cooling plates (1,2) run each horizontally in the same plane.
- the fasteners (14) are arranged in the grooves (10) Bores in the area of the two overlapping Flanges (5,6) introduced.
- Fig. 10 shows a partial plan view of the Arrangement of a cooling plate (1,2) existing cooling ring within a blast furnace.
- the cooling plates (1,2) are each by means of recesses (13) on the support pin (12) of the furnace shell (11) suspended, the webs (9) of the cooling plates (1,2) are each facing the inside of the oven and are used for Inclusion of refractory material. Through the blind holes (4) the cooling water is led inside, the with the cooling circuit of the blast furnace stands.
- the cooling plates (1,2) are each means Fastening elements (14) in the area of overlapping flanges (5,6) releasably connected.
- In the flange (5) of the first cooling plate (1) is one Threaded hole (16) and in the flange (6) of the other
- a cooling plate (2) is drilled into a hole (17).
- Fastening element (14) is usually a hexagon screw, through the hole (8) and in the threaded hole (7) is screwed.
- To secure the fasteners (14) are highly heat-resistant Sealing washers (15) used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
- Fig. 1
- einen Längsschnitt durch eine erste Kühlplatte (1),
- Fig. 2
- einen Querschnitt durch eine erste Kühlplatte (1),
- Fig. 3
- einen Längsschnitt durch eine andere Kühlplatte (2),
- Fig. 4
- einen Querschnitt durch eine andere Kühlplatte (2),
- Fig. 5
- eine Seitenansicht einer ersten Kühlplatte (1),
- Fig. 6
- eine Seitenansicht einer anderen Kühlplatte (2),
- Fig. 7
- einen Längsschnitt durch eine erste Kühlplatte (1),
- Fig. 8
- einen Längsschnitt durch eine andere Kühlplatte (2),
- Fig. 9
- einen Längsschnitt durch zwei miteinander verbundene Kühlplatten,
- Fig. 10
- eine Draufsicht auf die Anordnung eines Kühlringes in einen Hochofen.
- 1
- Kühlplatte mit Stegen zwischen den Seitenflanschen
- 2
- Kühlplatte mit Stegen auf den Seitenflanschen und dem Kühlkörper
- 3
- Kühlkörper
- 4
- Sackbohrungen in 1 oder 2
- 5
- vertikaler Seitenflansch von 1
- 6
- vertikaler Seitenflansch von 2
- 7
- horizontaler Seitenflansch von 1
- 8
- horizontaler Seitenflansch von 2
- 9
- Stege
- 10
- Nuten
- 11
- Ofenpanzer
- 12
- Tragzapfen an 11
- 13
- Aussparung in 1 oder 2
- 14
- Befestigungselemente
- 15
- Dichtscheibe
- 16
- Gewindebohrung in 5
- 17
- Bohrung in 6
Claims (7)
- Kühlplattensystem für mit einer feuerfesten Auskleidung versehene Schachtöfen, insbesondere Hochöfen, wobei die jeweiligen kühlplatten aus Kupfer oder einer niedriglegierten Kupferlegierung mit in ihrem Inneren angeordneten Kühlmittelkanälen bestehen, aus einem geschmiedeten oder gewalzten Rohblock gefertigt, sind und die Kühlkanäle vertikal verlaufende Sackbohrungen sind, mit bei Bedarf zusätzlichen am Rand in der Kühlplatte angeordneten vertikalen und horizontalen Sackbohrungen kleineren Durchmessers oder mit einem auf der Kühlplatte angeordnetem Kühlelement mit vertikal verlaufenden Sackbohrungen, die jeweils am Ende mit horizontal verlaufenden Sackbohrungen verbunden sind,
dadurch gekennzeichnet, daß eine erste Kühlplatte (1) mit beidseitigen, vertikalen Seitenflanschen (5) und mit beidseitigen, horizontalen Seitenflanschen (7), mit horizontal angeordneten, dem Ofeninneren zugekehrten Stegen (9) und Nuten (10) auf dem Kühlkörper (3) zwischen den Seitenflanschen (5, 7) versehen ist,
daß eine andere Kühlplatte (2) mit beidseitigen, vertikalen Seitenflanschen (6) und mit beidseitigen, horizontalen Seitenflanschen (8), mit horizontal angeordneten, dem Ofeninneren zugekehrten Stegen (9) und Nuten (10) auf dem Kühlkörper (3) und auf den Seitenflanschen (6, 8) oder nur auf den vertikalen Seiten flanschen (6) versehen ist. - Kühlplattensystem für mit einer feuerfesten Auskleidung versehene Schachtöfen, insbesondere Hochöfen, wobei die jewelligen Kühlplatten aus Kupfer oder einer niedriglegierten Kupferlegierung mit in ihrem Inneren angeordneten Kühlmittelkanälen bestehen, aus einem geschmiedeten oder gewalzten Rohblock gefertigt, sind und die Kühlkanäle vertikal verlaufende Sackbohrungen sind, mit bei Bedarf zusätzlichen am Rand in der Kühlplatte angeordneten vertikalen und horizontalen Sackbohrungen kleineren Durchmessers oder mit einem auf der Kühlplatte angeordnetem Kühlelement mit vertikal verlaufenden Sackbohrungen, die jeweils am Ende mit horizontal verlaufenden Sackbohrungen verbunden sind,
dadurch gekennzeichnet, daß eine erste Kühlplatte (1) mit beidseitigen, vertikalen Seitenflanschen (5) oder mit beidseitigen, horizontalen Seitenflanschen, mit horizontal angeordneten, dem Ofeninneren zugekehrten Stegen (9) und Nuten (10) auf dem Kühlkörper (3) zwischen den vertikalen oder horizontalen Seitenflanschen versehen ist,
daß eine andere Kühlplatte (2) mit beidseitigen, vertikalen Seitenflanschen (6) oder mit beidseitigen, horizontalen Seitenflanschen, mit horizontal angeordneten, dem Ofeninneren zugekehrten Stegen (9) und Nuten (10) auf dem Kühlkörper (3) und auf den vertikalen oder horizontalen Seitenflanschen versehen ist. - Kühlplattensystem nach Anspruch 1 und 2,
dadurch gekennzeichnet, daß in den vertikalen Seitenflanschen (5) oder den horizontalen Seitenflanschen (7) der ersten Kühlplatte (1) Gewindebohrungen (16) und in den vertikalen Seitenflanschen (6) oder den horizontalen Seitenflanschen (8) der anderen Kühlplatte (2) Bohrungen (17) eingebracht sind. - Kühlplattensystem nach Anspruch 3,
dadurch gekennzeichnet, daß die beiden vertikalen Seitenflansche (5, 6) einer ersten und anderen Kühlplatte (1;2) durch Befestigungselemente (14), die durch die Bohrungen (17) geführt und in den Gewindebohrungen (16) mit hochwarmfesten Dichtscheiben (15) verschraubt sind, einander überlappend verbunden sind. - Kühlplattensystem nach den Ansprüchen 1 bis 4, mit jeweils einer ersten Kühlplatte (1) mit zwei anderen Kühlplatten (2) oder zwei ersten Kühlplatten (1) und einer anderen Kühlplatte (2) bzw. mit einer Vielzahl von ersten Kühlplatten (1) und anderen Kühlplatten (2), die einen umlaufenden Kühlring innerhalb des Hochofenpanzers (11) bilden.
- Kühlplattensystem nach Anspruch 1 und 2,
dadurch gekennzeichnet, daß die Kühlplatten (1,2) in bekannter Weise mit Aussparungen (13) zur Aufhängung von an dem Ofenpanzer (11) befestigten Tragzapfen (12) versehen sind. - Kühlplattensystem nach Anspruch 3,
dadurch gekennzeichnet, daß die beiden horizontalen Seitenflansche (7, 8) durch Befestigungselemente (14), die durch die Bohrungen (17) geführt und in den Gewindebohrungen (16) mit hochwarmfesten Dichtscheiben (15) verschraubt sind, einander überlappend verbunden sind.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19516535 | 1995-05-05 | ||
DE19516535 | 1995-05-05 | ||
DE19545048A DE19545048C2 (de) | 1995-05-05 | 1995-12-02 | Kühlplatten für Schachtöfen |
DE19545048 | 1995-12-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0741190A1 EP0741190A1 (de) | 1996-11-06 |
EP0741190B1 true EP0741190B1 (de) | 2001-09-12 |
Family
ID=26014898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96106335A Expired - Lifetime EP0741190B1 (de) | 1995-05-05 | 1996-04-23 | Kühlplatten für Schachtöfen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5678806A (de) |
EP (1) | EP0741190B1 (de) |
JP (1) | JP4129492B2 (de) |
AT (1) | ATE205546T1 (de) |
ES (1) | ES2164183T3 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29611704U1 (de) * | 1996-07-05 | 1996-10-17 | MAN Gutehoffnungshütte AG, 46145 Oberhausen | Kühlplatte für metallurgische Öfen |
DE19727008C2 (de) * | 1997-06-25 | 2002-05-23 | Sms Demag Ag | Kühlplatten für Schachtöfen |
DE19751356C2 (de) * | 1997-11-20 | 2002-04-11 | Sms Demag Ag | Kühlelemente für Schachtöfen |
JPH11293312A (ja) * | 1998-02-13 | 1999-10-26 | Nkk Corp | 冶金炉用ステーブ |
DE19816867A1 (de) * | 1998-04-16 | 1999-10-21 | Schloemann Siemag Ag | Hochofen |
LU90328B1 (de) * | 1998-12-16 | 2003-06-26 | Paul Wutrh S A | Kuehlplatte fuer einen Ofen zur Eisen- oder Stahlerzeugung |
FI109937B (fi) * | 1999-05-26 | 2002-10-31 | Outokumpu Oy | Menetelmä metallurgisen reaktorin sulatilan komposiitti-jäähdytyselementin valmistamiseksi ja menetelmällä valmistettu komposiittijäähdytyselementti |
DE10024587A1 (de) * | 2000-05-19 | 2001-11-22 | Km Europa Metal Ag | Kühlplatte |
JP3633519B2 (ja) * | 2001-06-29 | 2005-03-30 | 住友金属工業株式会社 | 冶金炉用ステーブクーラおよびその取付け方法 |
CN100343395C (zh) * | 2002-03-12 | 2007-10-17 | Km欧洲钢铁股份有限公司 | 冷却元件 |
FI115251B (fi) * | 2002-07-31 | 2005-03-31 | Outokumpu Oy | Jäähdytyselementti |
LU91455B1 (en) * | 2008-06-06 | 2009-12-07 | Wurth Paul Sa | Gap-filler insert for use with cooling plates for a metallurgical furnace |
EP2553371B1 (de) * | 2010-03-30 | 2014-10-15 | Berry Metal Company | Plattenkühler und verfahren für hochofen zur herstellung von eisen- und eisenfreiem metall |
JP5825372B2 (ja) * | 2014-02-04 | 2015-12-02 | Jfeスチール株式会社 | 高炉のステーブ配置構造 |
FI20146035A (fi) * | 2014-11-25 | 2016-05-26 | Outotec Finland Oy | Menetelmä metallurgisen uunin rakentamiseksi, metallurginen uuni, ja pystysuuntainen jäähdytyselementti |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1039282A (en) * | 1912-04-15 | 1912-09-24 | Calvin Hicks | Blast-furnace. |
US1090574A (en) * | 1913-08-23 | 1914-03-17 | James P Dovel | Air-cooled blast-furnace stack. |
DE2907511C2 (de) * | 1979-02-26 | 1986-03-20 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Kühlplatte für Schachtöfen, insbesondere Hochöfen, und Verfahren zur Herstellung derselben |
DE2939852C2 (de) * | 1979-10-02 | 1983-09-08 | Hoesch Werke Ag, 4600 Dortmund | Kühlelement für einen metallurgischen Ofen, insbesondere Hochofen |
JPS59226106A (ja) * | 1983-06-06 | 1984-12-19 | Nippon Steel Corp | 竪型炉 |
SU1581747A1 (ru) * | 1988-06-20 | 1990-07-30 | Ленинградский государственный институт по проектированию металлургических заводов | Доменна печь |
DE3925280A1 (de) * | 1989-07-31 | 1991-02-07 | Gutehoffnungshuette Man | Fluessigkeitsdurchstroemtes kuehlelement fuer schachtoefen |
FR2654438B1 (fr) * | 1989-11-14 | 1994-04-01 | Chavanne Ketin | Plaques de refroidissement pour hauts-fourneaux et installation de refroidissement mettant en óoeuvre ce type de plaques. |
JPH0726132B2 (ja) * | 1991-02-12 | 1995-03-22 | 新日本製鐵株式会社 | 高炉用水冷金物の目地シール方法 |
ATE189265T1 (de) * | 1994-10-07 | 2000-02-15 | Schloemann Siemag Ag | Kühlplatte für schachtöfen |
DE19503912C2 (de) * | 1995-02-07 | 1997-02-06 | Gutehoffnungshuette Man | Kühlplatte für Schachtöfen, insbesondere Hochöfen |
-
1996
- 1996-04-23 ES ES96106335T patent/ES2164183T3/es not_active Expired - Lifetime
- 1996-04-23 EP EP96106335A patent/EP0741190B1/de not_active Expired - Lifetime
- 1996-04-23 AT AT96106335T patent/ATE205546T1/de active
- 1996-04-25 JP JP13936296A patent/JP4129492B2/ja not_active Expired - Fee Related
- 1996-05-03 US US08/642,626 patent/US5678806A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP4129492B2 (ja) | 2008-08-06 |
US5678806A (en) | 1997-10-21 |
EP0741190A1 (de) | 1996-11-06 |
ATE205546T1 (de) | 2001-09-15 |
ES2164183T3 (es) | 2002-02-16 |
JPH08333609A (ja) | 1996-12-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE DE ES FR GB IT LU NL SE |
|
17P | Request for examination filed |
Effective date: 19961004 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT |
|
17Q | First examination report despatched |
Effective date: 19991022 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
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