EP0682137A1 - Rotierender Trocknungs-Glattzylinder ausgestattet mit einer verbesserten Gazbeheizten Rampe - Google Patents

Rotierender Trocknungs-Glattzylinder ausgestattet mit einer verbesserten Gazbeheizten Rampe Download PDF

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Publication number
EP0682137A1
EP0682137A1 EP95401095A EP95401095A EP0682137A1 EP 0682137 A1 EP0682137 A1 EP 0682137A1 EP 95401095 A EP95401095 A EP 95401095A EP 95401095 A EP95401095 A EP 95401095A EP 0682137 A1 EP0682137 A1 EP 0682137A1
Authority
EP
European Patent Office
Prior art keywords
ramp
gas
dryer
ironer
cylinder
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.)
Granted
Application number
EP95401095A
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English (en)
French (fr)
Other versions
EP0682137B1 (de
Inventor
Michel Adler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Laundry Systems France SNC
Original Assignee
Electrolux Systemes de Blanchisserie SNC
Dubix de Souza SNC
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 Electrolux Systemes de Blanchisserie SNC, Dubix de Souza SNC filed Critical Electrolux Systemes de Blanchisserie SNC
Publication of EP0682137A1 publication Critical patent/EP0682137A1/de
Application granted granted Critical
Publication of EP0682137B1 publication Critical patent/EP0682137B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/02—Rollers; Heating arrangements therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D06C15/08—Rollers therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/14—Radiant burners using screens or perforated plates
    • F23D14/145—Radiant burners using screens or perforated plates combustion being stabilised at a screen or a perforated plate

Definitions

  • the invention relates to a dryer-ironer with rotating cylinder, in which the heating of the cylinder is carried out by means of a gas heating ramp placed inside the latter.
  • the dryer-ironer according to the invention can be used in all fields of traditional use of such a machine, that is to say in particular in communities involving the ironing of a large quantity of linen (hospitals, boarding schools, hotels , restaurants, etc.).
  • a dryer-ironer with rotating cylinder is a machine in which the ironing linen is introduced from above, at the front of the machine, between the rotating cylinder. and an endless carpet or set of bands.
  • a gas, steam or electric heating source is placed inside the cylinder to help dry and iron the laundry. Once dried and ironed, it leaves from the bottom, towards the front of the machine, to be collected in bulk in a front receiving tank or folded by an appropriate device.
  • this usually consists of a tube, of circular section, into which the air-gas mixture is injected at one end.
  • This mixture leaves the ramp by a row of calibrated holes formed according to a generator of the tube, to be ignited by an ignition system placed outside the tube.
  • Rotating cylinder ironers using gas heating ramps have a number of drawbacks, which arise in particular from the formation of flames outside the ramp.
  • the flames produced by the existing gas heating ramps tend to take off, which requires the addition on the latter of an annexed ramp provided with a second row of calibrated perforations opening at right angles opposite the first row of perforations.
  • the subject of the invention is precisely a dryer-ironer with rotating cylinder equipped with an improved gas heating ramp, the original design of which eliminates the drawbacks of existing ramps by making the flames disappear outside the ramp, which allows in particular to tilt them and avoid detachment without the need to add a second ramp or additional accessories.
  • a dryer-ironer with rotating cylinder and gas heating comprising, inside the cylinder, a gas heating rail, means for feeding this rail in air-gas mixture, connected to one end of the rail, calibrated holes formed in the rail, to allow the passage of the air-gas mixture, and means for igniting the gas leaving the calibrated holes, characterized in that the calibrated holes consist of a dense network of micro-perforations ensuring combustion of the gas mainly inside the micro-perforations and heating mainly in the infrared.
  • infrared inside the rotating cylinder ensures efficient and more uniform heating of the latter, by convection, whatever the nature of the gas used and without the need to use a gas under pressure.
  • the location of the flames inside the micro-perforations and the production of infrared are ensured both by the considerable increase in the number of calibrated holes per unit area and by the significant reduction in their section, compared to the ramps. gas heaters commonly used in ironer dryers.
  • the density of the micro-perforations according to the invention can be approximately 400 per cm2, for a section of 1180 cm2 and a length of 1600 mm.
  • the gas heating rail is advantageously placed in a lower region of the rotating cylinder, and the axes of the micro-perforations are inclined relative to the vertical, so as to be oriented externally towards a part of the cylinder close to an exit zone. laundry, and against the direction of the cylinder rotation direction.
  • a combustion product recovery ramp is advantageously placed in an upper region of the rotating cylinder, near a zone for introducing the laundry, so as to sweep a useful part of the cylinder through the combustion products. located between the laundry entry and exit areas.
  • the latter is advantageously fitted with at least one perforated distribution plate internally cutting the ramp, lengthwise, into at least two zones.
  • the supply means then emerge entirely in a first of said zones, adjacent to the end of the ramp, to which these supply means are connected.
  • the distribution plate or plates ensuring a substantially uniform distribution of the air-gas mixture along the ramp.
  • the supply means open into each of the zones and comprise distribution means ensuring a controlled supply of each zone with an air-gas mixture. This characteristic makes it possible, depending on the width of the ironed linen, to adjust the distribution of the heating along the ramp and, consequently, of the rotating cylinder.
  • the precision of the adjustment can be further improved by providing means making it possible to move each distribution plate along the axis of the ramp.
  • micro-perforations can in particular be formed in plates of ceramic material.
  • the ramp advantageously comprises a tubular metal part having a substantially planar face, parallel to its axis, in which juxtaposed windows are formed, the plates of ceramic material being mounted in these windows by watertight fixing means.
  • These sealed fixing means may in particular comprise tabs formed in the tubular metal part and folded over the plates of ceramic material, and flexible sealing pads, interposed between these plates and the window frames.
  • the invention relates to an ironer-dryer comprising a rotating cylinder 10, of horizontal axis, able to be driven in rotation around this axis, in the direction of the arrows F1, by means conventional drives (not shown) which are not part of the invention.
  • the dryer-ironer illustrated very diagrammatically in FIG. 1 further comprises an endless belt or bands 12 which run on rollers 14 whose axes are parallel to the horizontal axis of the cylinder 10. These rollers 14 are arranged in such a way that the endless belt or belts 12 are in contact with the rotating cylinder 10 substantially over half of its circumference. More specifically, the endless belt or belts 12 are in contact with the part of the circumference of the cylinder 10 which moves in the downward direction when the cylinder rotates in the direction of the arrows F1 in FIG. 1.
  • the ironing cloth is introduced into a zone for introducing the laundry located in the upper region of the rotating cylinder 10.
  • the laundry is placed on an introduction system such as a horizontal shelf 16 located nearby of the cylinder 10, in the linen introduction zone.
  • the linen introduced between the cylinder 10 and the belt or the endless belts 12 is driven by the latter, so as to be dried and ironed, in particular under the effect of the heating of the rotating cylinder 10.
  • the dried and ironed linen leaves the machine in a linen outlet zone located in the lower region of the rotating cylinder 10. It can in particular be collected in this zone by a tank (not shown) provided for this purpose below the cylinder 10.
  • the rotating cylinder 10 is a hollow cylinder in which is received a gas heating ramp 18 produced in accordance with the invention.
  • This ramp 18 is fixed and extends parallel to the horizontal axis of the rotating cylinder 10 and over most of its length. It is placed in a lower region of the cylinder, that is to say near the laundry exit area.
  • a ramp 20 for recovering combustion products is also placed inside the rotating cylinder 10.
  • This ramp 20 is fixed and also extends parallel to the horizontal axis of the rotating cylinder 10 over most of the length of this last. It is placed in an upper region of the rotating cylinder 10, above the ramp 18 for gas heating, that is to say near the area for introducing the laundry.
  • the gas heating rail 18 comprises a tubular metal part 22 which has a uniform section over its entire length.
  • This section which is triangular in the example shown, can take many other forms without departing from the scope of the invention.
  • the left end of the tubular metal part 22, considering FIG. 1, is closed while the opposite end communicates with means 24 for supplying the rail 18 with an air-gas mixture.
  • the supply means 24, of the ramp 18 in air-gas mixture comprise a gas inlet pipe 26, suitable for being connected to a gas source (not shown) by any suitable means.
  • the gas inlet pipe 26 is equipped with a valve 28, for example of the all or nothing type.
  • the valve 28 can be replaced by a tap making it possible to modulate the flow of gas admitted into the gas heating rail 18 or in certain areas of this rail, as will be seen later.
  • the means 24 for supplying the ramp 18 with an air-gas mixture further comprise a compression chamber 30 into which the pipe 26 opens.
  • This compression chamber 30 is equipped with one or more injectors 32 on a flat face facing towards the adjacent end of the tubular metal part 22 of the rail 18.
  • injectors 32 which depend on the gas used, are small enough that there is always a pressure in the gas compression chamber 30 when the valve 28 is open.
  • the compression chamber 30 is equipped with three injectors 32 arranged at the top of an equilateral triangle having a horizontal lower side.
  • the compression chamber 30 is placed inside a chamber 34 of air-gas mixture, into which the injectors 32 open.
  • the wall of the chamber 34 of air-gas mixture facing the tubular metal part 22 supports as much venturi tubes 36 that there are injectors 32.
  • Each of the venturi tubes 36 is aligned with one of the injectors 32 and opens out inside the tubular metal part 22 of the ramp 18, as illustrated in particular in FIG. 3.
  • each of the venturi tubes 36 is tightly fixed to the aforementioned wall of the air-gas mixing chamber 34 and each of the venturi tubes 36 passes tightly through a wall 37 closing the the adjacent end of the tubular metal part 22.
  • the wall of the air-gas mixing chamber 34 opposite to that which supports the venturi tubes 36 has perforations 38 through which the surrounding air is admitted into the chamber 34.
  • An air filter 40 is placed in this chamber, behind the perforations 38, in order to retain the particles possibly present in the air. After passing through this filter 40, the air admitted into the mixing chamber 34 is mixed with the gas leaving the injectors 32 in the space separating these injectors from the inlet end of the venturi tubes 36.
  • venturi tubes 36 all emerge at the same level in the tubular metal part 22, at a location relatively close to the wall 37.
  • a perforated distribution plate 42 is placed transversely inside the tubular metal part 22, slightly beyond the outlet ends of the venturi tubes 36.
  • This distribution plate 42 possibly in association with one or more other plates perforated distribution such as the plate 43 in FIG. 2, internally cuts the ramp 18 into a certain number of zones A, B and C.
  • the distribution plates 42, 43 establish predetermined pressure drops between these zones A, B and C , ensuring a relatively uniform distribution of the air-gas mixture over the entire length of the gas heating ramp 18.
  • the tubular metal part 22 has a substantially flat face 44, oriented parallel to its longitudinal axis, with an inclination of approximately 60 ° relative to the vertical.
  • This face 44 has, over most of its length, windows 46, rectangular or of any other shape, juxtaposed.
  • windows 46 rectangular or of any other shape, juxtaposed.
  • a rectangular plate 48 of ceramic material whose dimensions are slightly greater than those of the windows 46, so as to cover the latter entirely.
  • Each of the plates 48 of ceramic material is traversed in the direction of its thickness by a dense network of micro-perforations 49, through which the air-gas mixture admitted into the ramp 18 of gas heating by the supply means 24.
  • these sealed fastening means comprise tongues 50, formed for example by stamping in the tubular metal part 22 and folded over the plates 48, so as to keep them pressed against the flat surface 44
  • the tightness of the fixing is ensured by flexible sealing pads 52, which are interposed between the peripheral edge of each of the plates 48 and the frame 54 of the corresponding window 46. These sealing pads 52 make it possible in particular to preserve the seal between each of the plates 48 and its frame 54 despite the differential expansions which occur between the plate and the tubular metal part 22.
  • the surface 44 of the tubular metal part 22 also supports, near the end of this part. adjacent to the supply means 24, means 56 for igniting the gas passing through the micro-perforations.
  • These ignition means 56 comprise, for example, in a known manner, a spark train ignition system as well as a flame control system by ionization.
  • the substantially uniform distribution of the air-gas mixture over the entire length of the ramp 18 provided by the distribution plates 42 and 43 allows ignition of the gas at one end of the ramp. This makes it possible to place all of the conduits and electrical conductors at the same end of the ramp 18, which facilitates its assembly and disassembly.
  • the density of the micro-perforations 49 formed in the plates 48 as well as their very reduced section allow, after ignition of the gas by the ignition means 56, to form micro-flames inside the micro-perforations 49 formed in platelets. Heating is thus carried out in the infrared range.
  • This characteristic makes it possible in particular to orient the micro-flames towards the internal surface of the rotating cylinder 10, near the outlet area of the laundry, as illustrated in FIG. 1. More precisely, the inclination of the micro-perforations 49 substantially at 60 ° with respect to the vertical combined with the mounting of the ramp 18 in the lower region of the rotating cylinder and, with the orientation of the face 44 towards the part of the cylinder which moves down during its rotation (FIG. 1), makes it possible to establish a circulation of the combustion products along the internal surface of the cylinder 10, against the direction of the rotation of the latter, as illustrated by the arrows F2 in FIG. 1. These combustion products are taken up by the ramp 20 for recovering combustion products, after they have internally scanned the major part of the cylinder around which the clothes to be ironed circulate. Optimal thermal efficiency of the machine is thus ensured.
  • the structure of the gas heating ramp 18 according to the invention can be obtained at lower cost. This also constitutes an appreciable advantage compared to the machines of the prior art.
  • the gas heating ramp 18 has characteristics slightly different from those which have been described with reference to FIGS. 2 to 4, in order to allow adjustment of the distribution of heating along the ramp depending on the type of laundry you want to dry and iron.
  • the tubular metal part 22 is divided lengthwise into n distinct zones (for example 3) by perforated distribution plates 42, 43, as in the first embodiment described.
  • n distinct zones for example 3
  • perforated distribution plates 42, 43 there is inside the tubular metal part 22 an entry zone A, a central zone B and a terminal zone C.
  • each of the venturi tubes opens into a different area.
  • 36a the venturi tube opening into the inlet zone A
  • 36b the venturi tube opening into the central zone B
  • 36c the venturi tube opening into the terminal zone C.
  • each of the venturi tubes 36a, 36b and 36c is then located opposite an injector 32a, 32b and 32c communicating with a separate compression chamber 30a, 30b and 30c respectively.
  • injector 32a, 32b and 32c communicating with a separate compression chamber 30a, 30b and 30c respectively.
  • These three compression chambers are placed in a single air-gas mixing chamber 34.
  • each of the compression chambers 30a, 30b and 30c is ensured by a separate pipe fitted with a metering tap. Only the pipe 26b supplying gas to the compression chamber 30b, and the tap 28b placed in this pipe are shown in FIG. 5. It is thus possible to supply gas at will, according to a controlled flow rate, each of the zones A, B and C, to take into account the dimensions of the ironing linen.
  • the perforated distribution plates 42 and 43 are mounted in the tubular metal part 22 so as to be able to move parallel to the longitudinal axis thereof.
  • the means provided for this purpose may be constituted by any mechanism allowing a final adjustment to be made upon delivery of the machine, or an adjustment accessible to the user either from outside the machine, or by dismantling the ramp from gas heating.
  • the invention is not limited to the embodiments which have just been described by way of example, but covers all the variants thereof.
  • the dense network of micro-perforations ensuring the combustion of gas in the infrared according to the invention can be obtained either by using plates of different natures than the plates of ceramic material used in the two embodiments described, either by forming the micro-perforations directly in the material constituting the tubular part forming the ramp.
  • a single injector-venturi tube assembly can be used.
  • wafer means any solid object provided with a perforation or any object obtained by weaving or compression or any other means of assembling fibers or particles having a porosity allowing the optimum passage of the air-gas mixture.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
EP95401095A 1994-05-13 1995-05-11 Rotierender Trocknungs-Glattzylinder ausgestattet mit einer verbesserten gasbeheizten Rampe Expired - Lifetime EP0682137B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9405904A FR2719852B1 (fr) 1994-05-13 1994-05-13 Sécheuse-repasseuse à cylindre tournant équipé d'une rampe de chauffage au gaz perfectionnée.
FR9405904 1994-05-13

Publications (2)

Publication Number Publication Date
EP0682137A1 true EP0682137A1 (de) 1995-11-15
EP0682137B1 EP0682137B1 (de) 1999-01-07

Family

ID=9463192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401095A Expired - Lifetime EP0682137B1 (de) 1994-05-13 1995-05-11 Rotierender Trocknungs-Glattzylinder ausgestattet mit einer verbesserten gasbeheizten Rampe

Country Status (5)

Country Link
US (1) US5544644A (de)
EP (1) EP0682137B1 (de)
DE (1) DE69507076T2 (de)
ES (1) ES2128675T3 (de)
FR (1) FR2719852B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105814A1 (de) 2012-07-02 2014-01-02 Miele & Cie. Kg Bügelmaschine nach Art einer Mangel
CN105133275A (zh) * 2015-08-19 2015-12-09 上海百强洗涤设备制造有限公司 一种燃气式烫平机
CN105734880A (zh) * 2016-04-29 2016-07-06 连云港如年实业有限公司 一种红外线加热烫光辊温度控制系统
CN105734881A (zh) * 2016-04-29 2016-07-06 连云港如年实业有限公司 一种红外线加热烫光辊燃烧装置
EP3121328A1 (de) 2015-07-24 2017-01-25 Electrolux Professional S.p.A. Bügelvorrichtung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7402133B2 (en) 2002-12-17 2008-07-22 Boston Scientific Scimed, Inc. Spacer for sling delivery system
CN106149265B (zh) * 2015-04-08 2018-07-06 连云港如年实业有限公司 火焰加热烫光辊
CN106091644B (zh) * 2016-08-05 2019-04-30 黄业社 片状物烫干装置
CN111593526A (zh) * 2020-07-01 2020-08-28 浙江天派针织有限公司 一种针织面料用熨烫装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488137A (en) * 1968-10-17 1970-01-06 Hikaru Naganuma Infrared gas burner with flashback prevention arrangement
US3857670A (en) * 1973-03-29 1974-12-31 Int Magna Corp Radiant burner
US4809674A (en) * 1984-01-30 1989-03-07 New Super Laundry Machinery Co., Inc. Heater for flatwork finisher
JPH0198807A (ja) * 1987-10-13 1989-04-17 Toho Gas Co Ltd ガス式遠赤外線ヒーター
JPH01291007A (ja) * 1988-05-18 1989-11-22 Sharp Corp 燃焼装置
US5054543A (en) * 1990-01-24 1991-10-08 Chicago Dryer Company Expansion joint for rotary ironers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2141377A (en) * 1936-07-31 1938-12-27 Du Pont Process and apparatus for the production of sheeting
US3119439A (en) * 1959-09-17 1964-01-28 American Thermocatalytic Corp Mounting of combustion elements
DE1529197B1 (de) * 1966-04-06 1970-04-30 Kurt Krieger Strahlungsbrenner
US3515380A (en) * 1968-08-01 1970-06-02 Thermo Electron Corp Radiant-tube furnace

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488137A (en) * 1968-10-17 1970-01-06 Hikaru Naganuma Infrared gas burner with flashback prevention arrangement
US3857670A (en) * 1973-03-29 1974-12-31 Int Magna Corp Radiant burner
US4809674A (en) * 1984-01-30 1989-03-07 New Super Laundry Machinery Co., Inc. Heater for flatwork finisher
JPH0198807A (ja) * 1987-10-13 1989-04-17 Toho Gas Co Ltd ガス式遠赤外線ヒーター
JPH01291007A (ja) * 1988-05-18 1989-11-22 Sharp Corp 燃焼装置
US5054543A (en) * 1990-01-24 1991-10-08 Chicago Dryer Company Expansion joint for rotary ironers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 310 (M - 850)<3658> 14 July 1989 (1989-07-14) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 71 (M - 933)<4014> 9 February 1990 (1990-02-09) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105814A1 (de) 2012-07-02 2014-01-02 Miele & Cie. Kg Bügelmaschine nach Art einer Mangel
DE102012105814B4 (de) * 2012-07-02 2015-01-08 Miele & Cie. Kg Bügelmaschine nach Art einer Mangel
EP3121328A1 (de) 2015-07-24 2017-01-25 Electrolux Professional S.p.A. Bügelvorrichtung
WO2017016968A1 (en) * 2015-07-24 2017-02-02 Electrolux Professional S.P.A. Ironing apparatus
CN107849798A (zh) * 2015-07-24 2018-03-27 伊莱克斯商用电器有限公司 熨平设备
US10519593B2 (en) 2015-07-24 2019-12-31 Electrolux Professional S.P.A. Ironing apparatus
CN107849798B (zh) * 2015-07-24 2020-04-28 伊莱克斯商用电器有限公司 熨平设备
CN105133275A (zh) * 2015-08-19 2015-12-09 上海百强洗涤设备制造有限公司 一种燃气式烫平机
CN105734880A (zh) * 2016-04-29 2016-07-06 连云港如年实业有限公司 一种红外线加热烫光辊温度控制系统
CN105734881A (zh) * 2016-04-29 2016-07-06 连云港如年实业有限公司 一种红外线加热烫光辊燃烧装置

Also Published As

Publication number Publication date
US5544644A (en) 1996-08-13
DE69507076D1 (de) 1999-02-18
FR2719852A1 (fr) 1995-11-17
FR2719852B1 (fr) 1996-06-07
EP0682137B1 (de) 1999-01-07
DE69507076T2 (de) 1999-07-15
ES2128675T3 (es) 1999-05-16

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