EP0502963A1 - Bootskörper. - Google Patents
Bootskörper.Info
- Publication number
- EP0502963A1 EP0502963A1 EP91900753A EP91900753A EP0502963A1 EP 0502963 A1 EP0502963 A1 EP 0502963A1 EP 91900753 A EP91900753 A EP 91900753A EP 91900753 A EP91900753 A EP 91900753A EP 0502963 A1 EP0502963 A1 EP 0502963A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile
- longitudinal
- hull
- chord
- hull according
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 210000002435 tendon Anatomy 0.000 claims description 34
- 230000001154 acute effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000009966 trimming Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- BCCGKQFZUUQSEX-WBPXWQEISA-N (2r,3r)-2,3-dihydroxybutanedioic acid;3,4-dimethyl-2-phenylmorpholine Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O.OC(=O)[C@H](O)[C@@H](O)C(O)=O.O1CCN(C)C(C)C1C1=CC=CC=C1 BCCGKQFZUUQSEX-WBPXWQEISA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019227 E-number Nutrition 0.000 description 1
- 239000004243 E-number Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 235000015115 caffè latte Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
- B63B1/18—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
- B63B1/20—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface
Definitions
- the invention relates to a hull for fast gliding vehicles, the underside of which, at least in a longitudinal section through or parallel to the central plane, has a profile similar to the profile of a curvature of an aircraft wing, the apex of the longitudinal section of the profile relating to the bow-side end point of the chord of the longitudinal section in the front Half of the entire Seh ⁇ enulate is located, the rear profile end point is located at the lower end point of the stern or mirror below the water level.
- a similar type of hull is known, for example, from DE-PS 30 22 966 and FR-PS 515 361; however, this known hull has a number of disadvantages. Due to the relatively strong profile curvature in the hull according to the DE-PS in the front profile area, the flow around the hull is accelerated at this point, which creates a vacuum zone and the hull is "sucked" in this area by the water. One speaks of the "inverted wing effect", which also occurs when it is the underside of an aircraft wing. By reducing the profile curvature in the rear profile area, the flow velocity in this area is reduced compared to the front profile area, whereby an overpressure zone is created, which pushes the rear end of the profile upwards, i.e.
- the boat achieves a sliding state, which, however, is characterized by a higher resistance due to a higher wetted surface and a larger form resistance due to the curvature of the profile in the bow compared to conventional forms of sliding boat.
- the suction component caused by the profile curvature in the front profile area is so strong as a result of the horizontal profile flow that a transition to the sliding phase is possible, but significantly more energy is absorbed than if, e.g. by reducing the profile curvature and at the same time adjusting the profile, the downward tendencies in the foredeck area are reduced to a level that appears necessary to avoid excessive inclination or inclination of the ship or boat body at the time when the ship or boat is on its own bow wave emerges, as is the case with the known hull.
- the basic problem of all gliding vehicles is to be able to lift the stern out of the water while driving; This is either due to dynamic buoyancy or by means of buoyancy aids such as Trim tabs, side wedges etc., possible.
- the aim of the invention is to increase the buoyancy component in the stern of the hull, in particular the dynamic buoyancy in fast gliding.
- the energy requirement for fast gliding should be reduced.
- the invention has set itself the goal of creating a relatively uncompromising sliding fuselage with which the transition between displacement and sliding travel can be made as short as possible in terms of time and as little effort as possible in terms of performance.
- the boat hull according to the invention has a profile similar to the profile of an aircraft wing, which consists of a clear pull without any kinking and unsteadiness points, or that at ⁇ e ⁇ e ⁇ . Point ⁇ es Profiles only a clear tangent to the profile curve is possible.
- the apex of the longitudinal profile section is based on the bow end point of the tendon of the longitudinal section in the front half of the entire chord length and the tendon forms the angle ⁇ * - with the horizontal plane defined by the water level when the hull is unloaded or loaded.
- the stern is free of sliding surfaces; own or flat sliding surfaces are not provided on the hull; Air sliding surfaces under the hull are avoided.
- the sliding properties are supported if the foredeck is U-shaped or round-shaped, or if the foredeck is designed with frames drawn inwards and upwards.
- the angle of the Senne with the water level can be adjusted either by trimming the unloaded boat (trim weights, chains, feet ballast) or by loading the ship accordingly. If the desired angle is set by trimming the unloaded ship, it should not be changed by the loading or should only be changed within the specified limits.
- the kink-free aircraft profile is largely free of cross currents and that the transverse displacement flow caused by the foredeck leaves the hull laterally free and hydrodynamically unused.
- This design avoids that the flow generated by the fore ship adversely affects the behavior of the stern and the gliding properties of the stern are optimally usable, since the buoyancy in the stern can thus be caused, at least for the most part, by the flow running parallel to the ship's longitudinal axis.
- the longitudinal profile section has a turning point which is at a distance from the profile end point on the bow side of at least 30%, preferably at least 50%, in particular at least 60% of the total visual length.
- the profile longitudinal cut cuts the chord at least once in the region of the rear half of the chord. Due to the curvature of the profile in the front profile area, the current around the boat hull according to the current is pushed, which creates an underpressure, whereby the ship's hull is "sucked" in the area in question.
- the profile according to the invention which has a turning point, ends in a rear end point, which is located below the water surface.
- the static trim provided according to the invention (loaded or unloaded at a standstill), that is to say the inclination of the chord of the boat hull, which is in the longitudinal section of the wing of an aircraft wing, in relation to the water level, which produces a stern load on the hull in the unloaded or loaded state of the watercraft, the angle of which, in particular, is approximately 1.8 ° to 2.2 ° is a very important angle in shipbuilding.
- the boat body according to the invention has a base.
- Known boat hydrofoil shapes have triimverts which differ considerably from these values according to the invention.
- the buoyancy component in the stern area is remarkable, since the longitudinal profile cut has a turning point in this area and the profile longitudinal cut can even cut the tendon and runs above the tendon, making the tunneling effect much stronger and more effective for the desired buoyancy in the stern.
- the chord of the profile longitudinal section with respect to the swimming water line when the watercraft is unloaded or loaded, the dynamic buoyancy in the stern area is considerably increased, which results in favorable properties with regard to the gliding properties and energy requirements.
- FIGS. 1, 2 and 3 show different embodiments of boat hulls according to the invention
- FIGS. 4 to 6 show different sectional views
- Fig.l shows a schatHtiscnen section ⁇ rrcn an erf-inäjngsg ⁇ TB on hull 2.
- the hull 2 has in the middle section shown an underwater profile, which is formed by a curved profile section, generally designated 8.
- a section 5 'of the mirror 5 leads from the rear profile end point 4 up to the water level 3.
- the profile line 8 extends in the bow region from the front end point 4' of the underwater profile 8, if need be, unwound beyond the water level 3 into the bow part 2 'advantageously in a continuous manner , continuous profile line; in the stern, the underwater section 5 ′ extends advantageously into the stern line 5 located above the water level 3 in the form of a straight transition.
- chord 1 of the profile 8 runs from the bow end point 4 ', ie the front intersection of the profile 8 with the water level 3, to the rear end point 4 of the chord 1, which is located below ' the water level 3 and vdn at an angle '; * - (Fig. 1,7) inclined or perpendicular to Water level trending mirror lime 5.5 'is cut.
- the chord 1 forms an angle with the horizontal plane which is formed by the water level 3, which is between 1 ° and 3 °, preferably about 2 °.
- the dashed line 80 supplements the profile 8 to a wing-like profile.
- FIG. 3 A similar profile is shown in Figure 3, in which the profile line 8 has another intersection 7 'with the chord 1. In the case of two intersection points 7, 7 ', the rear end region of the profile line 8 runs into the end point 4 from below into the chord 1.
- the profile 2 shows a profile profile, in which the profile 8, starting from the front end point 4 'lying at the height of the water level 3, initially thickens to the apex 9, then decreases and has an inflection point 6, from which, with simultaneous, further profile decrease the profile cuts, not tangent, into the rear end point 4 of the tendon 1, in which the profile section 5 'adjoins.
- the Spiegelu ⁇ terkante which, insofar as it runs horizontally, coincides with the end point 4 in the drawing, lies when the hull 2 is unloaded with its total length running transversely to the central section under the water level.
- FIG. 2 shows, if the height V a of the profile longitudinal section 8 below the chord 1 between the rear side
- End point 4 of the tendon 1 and a range of 20% -40%. preferably 20% to 30% of the total tendon angle compared to the profile height y max im
- the apex 9 of the 5 longitudinal profile section 8 is located in a distance range of 20% to 40%, in particular 25% to 35%, of the entire length of the chord, based on the bow-side end point 4 'of the chord 1. This measure keeps the so-called “suction" of the bow area of the hull within limits and achieves a balanced driving behavior at the start of the journey. 0 Hiebei it is useful if the height y max of the profile longitudinal section 8 at the apex 9 is less than 20%, preferably less than 15%, of the chord length.
- Hull 2 over the horizontal plane 3 advantageously 0 m unchanged or only slightly changed curvature up to a point
- FIGS. 4 and 5 show a predetermined angle, which is shown in FIGS. 4 and 5.
- the left half of FIG. 4 shows a vertical cross section through a boat hull, in which the profile or chord course of the boat hull 2 according to the invention is limited to a narrow zone 40 which receives the 3 vertical longitudinal center plane 38. It is therefore only for this zone 40 that the front end point 4 'of the tendon 1 lies in the horizontal plane 3; the chord 1 is advantageously still inclined at an angle C to the horizontal plane.
- the longitudinal profiles of the underside of the boat hull which run at a greater distance from the longitudinal median plane 38, have the same shape as the longitudinal section profile in zone 40, but they have different heights.
- Your tendons are namely in the surfaces 42, which rise towards the hull side ⁇ 44.46.
- the surfaces 42 represent planes.
- the sides of the hull can have straight frames 44, as shown on the left in FIG. 4, or else curved frames 46, as shown in the right on FIG.
- Kink lines 48 straight lines that run parallel to the perpendicular longitudinal plane 38 of the hull.
- FIG. 6 The characteristics reproduced there represent the areas 42 in which the respective chords 1 of the vertical longitudinal section profiles of the underside of the hull lie.
- the line A is kinked twice, namely at 48 and 50.
- the line B is also kinked twice and runs from the vertical longitudinal median plane 38 first weakly and then more upwards and outside the kink line 50 either upwards or downwards.
- the line C shows a surface 42 which initially runs slightly downwards from the vertical longitudinal plane 38 and upwards outside the bend line 48.
- Line D is similar to line C, but has a second fold line 50 and can take three different directions beyond this fold line.
- FIG. 7 shows a bottom view of the hull 2 illustrated in FIG. 2, the supporting surfaces of which are swept to the rear.
- the vertical longitudinal center plane 38 of the hull coincides with the horizontal plane 3 and is drawn in FIG. 7 as a straight line, under which the longitudinal profile section 8 associated with the dot-dash line and the chord 1 at an angle are shown in broken lines.
- the Sch ⁇ it ⁇ ltician 9 is located in the vertical transverse plane 52 at a distance Y max of the tendon 1.
- he longitudinal plane 54 which runs parallel to Lä ⁇ gsffenebene 38, has the bottom side of the hull located beneath the water table level, a shorter profile longitudinal section 8 with a shorter chord than the profile longitudinal section in the central plane 38; also the The apex 9 'has a smaller maximum value Y max, which is located in the transverse plane 60, which is further to the stern than the transverse plane 52.
- the bow-side end points 4', 4 "of the profile lines 8 or tendons 1 lie on a degree (curve) inclined at an angle of 90 ° to the central plane 38 or, alternatively, in a plane (curved surface) 74, so that external profiles are reduced in a similar scale, in the vertical longitudinal plane 62, which is parallel to the longitudinal plane 54 and extends to the longitudinal center plane 38, the underside of the hull 2 below the water level has an even shorter profile 8 with the apex 9 ", the Y max of which is smaller than that of the apex 9 '.
- the apex 9 lies in a transverse plane 66, which is closer to the rear than the transverse plane 60.
- the three apexes 9, 9 ', 9" thus lie in a vertical plane (curved surface) 51 which is at an angle with the transverse plane 52 ⁇ includes. According to the invention it is thus provided that. proceeding from the longitudinal profile section 8 in the middle plane to the following profile longitudinal sections 8 or chords 1 and / or the angle ⁇ , mi of the horizontal plane 3 from the outside to the following profile lines are shortened or reduced taking into account the laws of similarity. Even if the angle of the tendon 1 can decrease towards the outside, it does not reach the value 0 °.
- An important value for the sweeping of the profile or for the similarity are the angles and ⁇ which the surfaces 51 and 74 enclose with transverse planes to the longitudinal direction of the boat.
- the hull 2 at the stern a rear face 70, which ,, ⁇ may be inclined to the vertical longitudinal center plane 38 at an angle. As indicated by the two angle ⁇ j in Figure 7 is indicated.
- While surface 51 is a plane in the embodiment of FIG. 7, there is also the possibility of making it run kinked or curved. This means that the end points 4 ', "or the vertices 9,9', 9" have a kinked or curved connecting line.
- the profile lines in the longitudinal planes eg 38, 54, 62
- the absolute values of the profile or chord length and the crown thickness Y max smaller towards the side of the boat.
- the boat bottom can rise outwards. This effect can be increased by that the tendons are ang ⁇ or ⁇ net instead of at the same height in the planes 42 according to FIGS. 4 and 6.
- chord lengths of the profile lines of the underside of the hull decrease from the inside out to zero at point 4 "'.
- the front end points of the profiles lie on a vertical plane 74 which the plane 51 (with the vertices) in the tail 70 at point 4 '".
- the further outside one of the vertical longitudinal section profiles is, the smaller the distance of the front end point 4 ', this profile, from the vertices 9,9' until they coincide at point 4 "'.
- an angle ⁇ Of more than 1.3 °. There is only one upper limit for construction reasons. Angles C of 1.7 ° to 3 ° are advantageous. Angles of less than 1.3 ° were not very advantageous. Very good results were achieved with angles between 1.5 ° and 2.5 °.
- the boat hulls according to the invention are advantageously used for motor-driven, fast gliding vehicles.
- the boat hulls can be used for vehicles with one or more hulls (catamarans). I n the following is given a general formula for the proper erfi ⁇ dungs- Kurve ⁇ verlauf (f ( ⁇ )) ⁇ ines longitudinal sectional profile:
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Glass Compositions (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Earth Drilling (AREA)
- Graft Or Block Polymers (AREA)
- Lubricants (AREA)
- Developing Agents For Electrophotography (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Toys (AREA)
- Hydraulic Turbines (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT271389 | 1989-11-27 | ||
AT2713/89 | 1989-11-27 | ||
PCT/EP1990/002028 WO1991008137A1 (de) | 1989-11-27 | 1990-11-27 | Bootskörper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0502963A1 true EP0502963A1 (de) | 1992-09-16 |
EP0502963B1 EP0502963B1 (de) | 1994-06-01 |
Family
ID=3539133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91900753A Expired - Lifetime EP0502963B1 (de) | 1989-11-27 | 1990-11-27 | Bootskörper |
Country Status (13)
Country | Link |
---|---|
US (1) | US5499593A (de) |
EP (1) | EP0502963B1 (de) |
JP (1) | JPH05504115A (de) |
KR (1) | KR0183951B1 (de) |
AT (1) | ATE106338T1 (de) |
AU (1) | AU644836B2 (de) |
BR (1) | BR9007873A (de) |
CA (1) | CA2069751C (de) |
DE (1) | DE59005965D1 (de) |
FI (1) | FI103568B (de) |
HU (1) | HU217260B (de) |
NO (1) | NO178180C (de) |
WO (1) | WO1991008137A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9325762D0 (en) * | 1993-12-16 | 1994-02-23 | Paragon Mann Ltd | Boat |
AT406143B (de) * | 1997-10-16 | 2000-02-25 | Eder Theodor | Schiffskörper |
KR20000025585A (ko) * | 1998-10-13 | 2000-05-06 | 이해규 | 선박의 문풀부 저항 저감 장치 |
JP3490392B2 (ja) * | 2000-11-22 | 2004-01-26 | 株式会社川崎造船 | トランサムスターン型船尾形状 |
US7040874B1 (en) * | 2004-11-18 | 2006-05-09 | Honeywell International, Inc. | Integrated turbocharger lubricant filter system |
US20060254486A1 (en) * | 2005-05-12 | 2006-11-16 | Ashdown Glynn R | Winged hull for a watercraft |
US10518842B1 (en) * | 2018-11-15 | 2019-12-31 | James H. Kyle | Boat hull |
CN113955037B (zh) * | 2021-11-23 | 2024-05-28 | 中国舰船研究设计中心 | 一种带导流罩的调查船艏部及附体线型集成设计方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US912814A (en) * | 1908-05-06 | 1909-02-16 | George Ronstrom Clifford | Hydroplane vessel. |
FR507556A (fr) * | 1914-07-10 | 1920-09-18 | Villard Ghislaine | Bateau glisseur hydroplane à hélice aérienne |
FR515361A (fr) * | 1920-05-05 | 1921-03-31 | Clement Galvin | Coque pour hydroglisseur |
US1505113A (en) * | 1922-10-30 | 1924-08-19 | Gidley Boat Company Ltd | Motor boat |
FR689792A (fr) * | 1930-02-12 | 1930-09-11 | Chris Smith & Sons Boat Compan | Canot automobile |
DE687340C (de) * | 1937-08-01 | 1940-01-27 | Gotthard Sachsenberg Zentralge | Wasserfahrzeug |
DE872018C (de) * | 1941-02-18 | 1953-03-30 | Hans Jastram | Rumpfform fuer flach gehende Wasserfahrzeuge mit Heckantrieb und Schabloneneinrichtung zur Herstellung derselben |
GB1025454A (en) * | 1964-02-07 | 1966-04-06 | Edward James Wilkins | Improved hull for power driven boats |
US3342032A (en) * | 1966-06-29 | 1967-09-19 | Clifford B Cox | Jet propulsion means for a boat |
DE3022966C2 (de) * | 1980-06-19 | 1986-07-17 | Paul Dr. 1000 Berlin Mader | Bootskörper, insbesondere für eine Segeljolle |
JPH0643002B2 (ja) * | 1986-02-17 | 1994-06-08 | 株式会社森精機製作所 | Nc旋盤 |
DE3717548A1 (de) * | 1987-05-25 | 1988-12-15 | Internaval Trust Reg | Schnelles wasserfahrzeug |
US5002004A (en) * | 1987-11-11 | 1991-03-26 | Mitsui Engineering & Shipbuilding Co., Ltd. | Planing boat |
-
1990
- 1990-11-27 WO PCT/EP1990/002028 patent/WO1991008137A1/de active IP Right Grant
- 1990-11-27 HU HU9201654A patent/HU217260B/hu not_active IP Right Cessation
- 1990-11-27 JP JP3501206A patent/JPH05504115A/ja active Pending
- 1990-11-27 EP EP91900753A patent/EP0502963B1/de not_active Expired - Lifetime
- 1990-11-27 AU AU69652/91A patent/AU644836B2/en not_active Ceased
- 1990-11-27 DE DE59005965T patent/DE59005965D1/de not_active Expired - Fee Related
- 1990-11-27 US US07/859,354 patent/US5499593A/en not_active Expired - Fee Related
- 1990-11-27 CA CA002069751A patent/CA2069751C/en not_active Expired - Fee Related
- 1990-11-27 BR BR909007873A patent/BR9007873A/pt not_active IP Right Cessation
- 1990-11-27 AT AT91900753T patent/ATE106338T1/de not_active IP Right Cessation
- 1990-11-27 KR KR1019920701230A patent/KR0183951B1/ko not_active IP Right Cessation
-
1992
- 1992-05-26 FI FI922394A patent/FI103568B/fi not_active IP Right Cessation
- 1992-05-26 NO NO922093A patent/NO178180C/no unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9108137A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1991008137A1 (de) | 1991-06-13 |
HU217260B (hu) | 1999-12-28 |
HUT66052A (en) | 1994-09-28 |
HU9201654D0 (en) | 1992-09-28 |
US5499593A (en) | 1996-03-19 |
AU6965291A (en) | 1991-06-26 |
NO178180C (no) | 1996-02-07 |
ATE106338T1 (de) | 1994-06-15 |
JPH05504115A (ja) | 1993-07-01 |
AU644836B2 (en) | 1993-12-23 |
KR0183951B1 (ko) | 1999-05-01 |
KR920703384A (ko) | 1992-12-17 |
DE59005965D1 (de) | 1994-07-07 |
FI922394A0 (fi) | 1992-05-26 |
FI922394A (fi) | 1992-05-26 |
NO922093L (no) | 1992-07-01 |
FI103568B1 (fi) | 1999-07-30 |
NO178180B (no) | 1995-10-30 |
CA2069751A1 (en) | 1991-05-28 |
BR9007873A (pt) | 1992-08-25 |
EP0502963B1 (de) | 1994-06-01 |
FI103568B (fi) | 1999-07-30 |
NO922093D0 (no) | 1992-05-26 |
CA2069751C (en) | 1998-10-06 |
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