EP0490285A1 - Uhr vom Typ eines Einholzeigerchronographs mit einer Vorrichtung zum Anhalten und Starten eines Einholzeigers - Google Patents

Uhr vom Typ eines Einholzeigerchronographs mit einer Vorrichtung zum Anhalten und Starten eines Einholzeigers Download PDF

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Publication number
EP0490285A1
EP0490285A1 EP91120949A EP91120949A EP0490285A1 EP 0490285 A1 EP0490285 A1 EP 0490285A1 EP 91120949 A EP91120949 A EP 91120949A EP 91120949 A EP91120949 A EP 91120949A EP 0490285 A1 EP0490285 A1 EP 0490285A1
Authority
EP
European Patent Office
Prior art keywords
split
clamp
mobile
branches
chronograph
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
EP91120949A
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English (en)
French (fr)
Other versions
EP0490285B1 (de
Inventor
Cyril Vuilleumier
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.)
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0490285A1 publication Critical patent/EP0490285A1/de
Application granted granted Critical
Publication of EP0490285B1 publication Critical patent/EP0490285B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0866—Special arrangements
    • G04F7/0876—Split-time function, e.g. rattrappante

Definitions

  • the present invention relates to a timepiece of the split-seconds chronograph type, equipped with a device for controlling the stopping and starting of a split-seconds hand.
  • a mechanical or electromechanical chronograph comprising a clockwork movement which controls display organs such as a second hand called the "hand" chronograph ", a minute counter and an hour counter. Thanks to this chronograph, we can then determine the time it took for this runner to complete a given route.
  • a chronograph in its simplest version for example a chronograph provided with a single pusher, does not make it possible to measure several successive times, since it necessarily requires a reset of its display members after each measurement. We therefore have recourse in this case to the use of a chronograph provided with an additional seconds hand called "split-seconds hand".
  • FIGs 1 and 2 attached illustrate a chronograph equipped with a device for controlling a split-second hand according to the prior art.
  • the dial side of the chronograph is located at the top.
  • the split-seconds chronograph is fitted with a large medium wheel 1 forming part of a mobile 3 pierced over its entire length, a chronograph wheel 5 whose tube 7 pivots inside the mobile 3 and a split-second wheel 9 whose axis 11 is freely adjusted inside the tube 7.
  • a catch-up needle 13 On the free end of the axis 11 is fixed a catch-up needle 13 while the other end of said axis is in abutment against a stone 14 provided in a bridge 16.
  • a chronograph needle 15 is fixed at one end of the tube 7.
  • a heart 17, called split-heart At the other end of this tube is fixed a heart 17, called split-heart which is integral in rotation with the chronograph wheel 5.
  • a chronograph heart 19 is fixed on the tube 7 against the side chronograph wheel 5.
  • the various chronograph parts are arranged on either side of a chronograph plate 21 and a bridge 23.
  • a lever 25 is pivotally mounted under a serge 27 (FIG. 1) of the split-second wheel 9 and pivots about an axis 29. At the free end of this lever 25 is rotatably mounted a roller 31, preferably in ruby . This lever 25 is biased by a spring 33 which is also mounted on the rim 27. Thanks to this spring 33, the roller 31 is kept in permanent contact with the periphery of the split-back core 17.
  • the split-second wheel 9 is arranged between the two branches 35 and 37 of a split-grip pliers 39 in a U so that the ends of these two branches can pinch the wheel 9 in two diametrically opposite places.
  • a column wheel 41 is disposed between the two branches 35, 37 at the height of their middle region.
  • the column wheel 41 present in its upper part (with respect to FIG. 1), that is to say in its part directed towards the bottom of the chronograph case, a cam 42 comprising eight columns 43 regularly distributed around its periphery and in its lower part a ratchet 44 provided with sixteen teeth 45.
  • This column wheel 41 can be rotated in the direction of the arrow F1 by a pawl 47 which acts on the teeth 45.
  • This pawl 47 can itself be actuated by a rocker 49 while being subjected to the action of 'a spring 51.
  • the column wheel 41 is locked in rotation by a jumper 53 and the split-second clamp 39 pivots freely around a tenon 55 mounted on an extension of the foot of the jumper 53.
  • the two branches 35 and 37 of the split-second clamp 39 are provided with spouts, respectively 57 and 59 cooperating with the columns 43.
  • the two arms 35 and 37 can move between two positions.
  • a first position shown in Figure 1 the spouts 57 and 59 are respectively between two neighboring columns 43, so that the branches 35 and 37 pinch the flywheel 9 and lock it.
  • a second position the spouts 57, 59 are respectively in abutment against two diametrically opposite columns 43, so that the branches 35 and 37 are spaced from the wheel 9. The transition from the first position of the branches to the second therefore takes place in the direction of the arrows F2.
  • the roller 31 located at the end of the lever 25 is housed in the notch 61 of the split-second heart 17. Consequently, when the chronograph wheel 5 rotates by advancing in steps, driven by a drive wheel not shown, it drives not only the tube 7, the split-heart 17 and the chronograph hand 15, but also the split-wheel 9 by means of the lever 25.
  • the split-wheel 9 rotates in synchronism with the chronograph wheel 5 and the two hands 13 and 15 rotate simultaneously and are superimposed on each other.
  • the user After having read the intermediate time, the user exerts a second pressure on the lever 49. This has the effect of rotating the column wheel 41 by an additional step and of spreading the arms 35 and 37 of the clamp 39.
  • the split-second wheel 9 is released and rotates until the roller 31 of the lever 25 is again in the notch 61 under the action of the spring 33 which was bandaged during the rotation of the split-wheel.
  • the two needles 13 and 15 then start to rotate again.
  • the precaution taken by the watchmaker-builder consists in providing ranges between the mobiles only at one end of the latter (that is to say generally near the hands) as shown in the figure. 2.
  • the opposite end of the mobile is then supported only on an axial stop (stone 14, Figure 2) without being held radially.
  • the mobiles in question can thus adjust themselves radially one inside the other without resulting in premature wear or even blocking in rotation.
  • the invention aims to remedy these drawbacks.
  • the subject of the invention is therefore a timepiece of the split-seconds chronograph type, equipped with a device for controlling the stopping and running of a split-seconds hand, the piece comprising a split-seconds mobile fixed to said split-second needle, a split-second gripper taking substantially the shape of a U with two branches connected by a connecting portion, the split-second mobile being disposed between the free ends of the two branches, and means intended to deform said clamp so that it can assume two configurations, namely a first so-called closed configuration, in which each branch of the clamp is in contact with the periphery of the split-second mobile so as to block the latter and therefore stop the split-second needle, and a second configuration, called open, in which the two branches of the clamp are not in contact with the split-second mobile, so as to release the latter and to authorize the running of said split-second needle, this part being characterized in that it further comprises two organs of fixed reactions against which said connection portion is pressed and in that said deformation means comprise means for generating a deformation force
  • control device is capable of simultaneously removing the branches of the split-second mobile and also bringing them together simultaneously, which avoids any asymmetrical radial force on the split-second mobile.
  • the control device comprises a clamp split-second 101 intended to cooperate with the wheel 102 of the split-second mobile 103 of a chronograph.
  • This mobile 103 is provided with a pivot 105 at the end of which is a catch-up needle 107 (shown only in FIG. 7).
  • the split-second pliers 101 produced in one piece has the general shape of a U with two branches 109 and 111 connected by a strip 113 forming a connecting portion.
  • the wheel 102 of the split-second mobile 103 is disposed between the free ends of the branches 109 and 111.
  • the control device is mounted on a plate 114 in which are driven two pins 115 and 117 acting as reaction members.
  • the clamp 101 has in its connection zones between the branches 109 and 111 and the connection portion or lamella 113, arcuate connection portions 119 and 121 which pass around the respective pins 115 and 117 at an angle of approximately 270 °, thus giving the gripper 101 a good seat.
  • Each branch 109, 111 further comprises, going in the direction of its free end, a bent portion 123 bringing it towards the other branch, a straight portion 125 in which a recess 127 is provided, an enlarged portion 129a, 129b and a arcuate portion 131 extending towards the outside of the clamp followed by an active rectilinear portion 133 which tangents the periphery of the wheel 102.
  • each branch located on either side of the recess 127 extend in different planes, those located on the side of the mobile 103 being the furthest from the plate.
  • each branch has a width l1 greater than the width l2 of the connecting portion 113.
  • the branches 109 and 111 have a stiffness in the plane of the clamp significantly larger than this connecting portion 113 in which the deformation of the clamp is concentrated, when the latter is urged to release the mobile 103.
  • the control device also comprises deformation means 135, the construction of which is as follows.
  • a pin 137 is driven into the plate 114 and held at its other end by a bridge 114 '.
  • a mobile 141 with two stages 141a and 141b.
  • the first stage 141a located closest to the plate 114 carries a cam 142, with five spans for example, while the second stage forms a ratchet 141b here having ten triangular teeth.
  • the cam 142 is provided in the plane of the clamp 101.
  • the control device also includes a thrust and positioning member 143 formed by a V-shaped spring (FIG. 3A), the tip of which is mounted so as to be able to pivot around a pin 145 driven into the plate 114.
  • a thrust and positioning member 143 formed by a V-shaped spring (FIG. 3A), the tip of which is mounted so as to be able to pivot around a pin 145 driven into the plate 114.
  • a first branch 143a of this V-shaped spring extends from the pin 145 to an interval formed between the cam 142 and the deformable strip 113 of the clamp 101.
  • the free end of this branch is shaped so as to constitute a motion transmission head 143c which is in elastic contact with the profile of the cam 142 while also being in elastic contact with the deformable strip 113.
  • the opposite branch 143b of the pushing and positioning member 143 jumper-shaped to block the mobile 141 and the cam 142 in rotation, when the control device is active (FIG. 3). Otherwise, it is the other branch 143a of the member 143 which ensures the rotation blocking of the mobile 141.
  • the control device also comprises a control lever 147 (FIG. 3B), formed by a curved blade fixed by a first end portion 147a to the pin 145 and to another pin 149 located at a certain distance from the latter and also driven into the plate 114.
  • a control lever 147 (FIG. 3B), formed by a curved blade fixed by a first end portion 147a to the pin 145 and to another pin 149 located at a certain distance from the latter and also driven into the plate 114.
  • a narrow portion 147b elastically deformable extends from the pin 149 in the direction of the mobile 141 where it is extended by a wider and more rigid pallet 147c extending approximately at right angles in the same plane as the narrow portion 147b.
  • a tab 147d curved out of the plane of the control lever is intended to cooperate with a push button (not shown) located at the outside of the chronograph case (see in particular Figure 5).
  • the pallet 147c is connected to an actuating portion 147e in the form of a V, the free branch 147f of which has a hook-shaped head 147g intended to act on the ratchet 141b.
  • a buttonhole 147h is pierced in the pallet 147c where the latter is engaged on the pin 115 which thus ensures the guiding of the control lever 147 and prevents deformation outside of the plane of the lever, when the latter is actuated.
  • V-shaped portion 147e extends above the rear part of the clamp 101 in order to keep it in place, and to prevent it from moving away from the plate 114 (see in particular the figures 5 and 6).
  • FIG. 7 partially shows a split-seconds chronograph module 151A intended to be adapted to a watch movement 151B of the current type, the control device according to the invention being incorporated in the first module 151A.
  • this module 151 A is built on the plate 114 to which the bridges 114 ′ and 139 are fixed. A center tube 153 is driven into the latter.
  • a chronograph heart 165 intended for resetting and conventionally designed is fixed on the mobile 155 above the pinion 159.
  • This mobile is driven by a seconds wheel 167 whose rotation is ensured in a conventional manner from the watch movement 151B, with which the chronograph module 151A is associated.
  • This watch movement 151B is only very partially shown in FIG. 7.
  • the mobile 155 is crossed by an axial passage 169 in which is inserted the axis 105 which is part of the split-second mobile 103 and to which is fixed the wheel 102 as well as a needle 107.
  • the split-wheel 102 is constructed in a conventional manner (as shown in Figure 1). It is therefore fitted with a split lever 171 provided with its roller (not visible in FIG. 7), and with a spring support (also invisible) acting on this lever 171.
  • a split-heart 173 is fixed on the mobile 155 and cooperates with the lever 171 for the execution of the recovery operation.
  • the wheel 102 also cooperates with the clamp 101 forming part of the control device according to the invention.
  • FIG. 7 also shows that the split-second mobile is in axial abutment against a stone 175 embedded in a wheel 177 carried by a second mobile in the center 179 forming part of the watch module 151B to which the chronograph module 151A equipped with its device control according to the invention, is associated.
  • the central seconds mobile 179 pivots in a center tube 181 driven into the plate 183 of the watch module 151B.
  • a roadway mobile 185 provided with its road wheel 187, the arrangement being conventional.
  • the central seconds mobile 179 has, on the side of the chronograph module 151A, a length such that the wheel 177 which it carries can be easily adjusted axially.
  • This possibility of adjustment makes it possible, despite the presence of unavoidable manufacturing tolerances, to always adjust the axial support of the split-second mobile 103 at its fair value.
  • the association of any standard watch module with a serial chronograph module constructed as indicated above, can then be made without risk of jamming or premature wear of the rotating elements of the center of the assembly.
  • control device The operation of the control device according to the invention is as follows.
  • the clamp 101 does not act on the split-second wheel 102.
  • the split-second mobile 103 and the chronograph mobile 155 are integral in rotation, the hands 107 and 157 being superimposed and moving together.
  • the roller of the lever 171 is located in the notch of the heart 173, there is axial coupling of the two mobiles.
  • the clamp 101 is kept open by the control device whose V-shaped spring 143 acts on the deformable strip 113 by exerting a force in the direction of the arrow F4, that is to say perpendicular to the strip 113.
  • the strip is so find in a curved configuration, which separates the branches 109 and 111 of the clamp which are relatively rigid in the plane thereof.
  • the spring 143 can exert the force F4 on the strip 113 thanks to the fact that its head 143c is in abutment against one of the high areas of the cam 142.
  • the two-stage mobile 141 on which this cam is fixed is kept immobilized in rotation thanks to the opposite branch 143b of the V-shaped spring 143, the end of which acts as a jumper and bears against a low range of the cam 142.
  • the presence of this V-shaped spring 143 is very important. Indeed, this spring makes it possible to transform the rotational movement of the cam 142 into a translational movement of the head 143c, and thus the force F4 is exerted perpendicularly to the strip 113. If this spring 143 was absent and if it was the cam 142 which exerted the force F4, the latter would not be perpendicular to the strip 113, due to the rotational movement of the cam 142.
  • the clamp 101 would risk not opening symmetrically.
  • the control device then passes from the configuration of FIG. 3 to that shown in FIG. 4. Indeed, the progression of one step of the mobile 141 reverses the position of the head 143c and of the jumper of the branch 143b relative to the cam 142, the head 143c descending on a low range thereof, and the branch 143b rising on a high range. Consequently, the cam is again immobilized in rotation, the head 143c acting as a jumper in this case.
  • the strip 113 tends to resume a rectilinear shape thereby bringing the branches 109 and 111 against the chronograph wheel 102.
  • the bringing together of the branches is simultaneous and symmetrical, which avoids any asymmetrical effort on the chronograph mobile 103 likely to tilt it.
  • the branches 109 and 111 of the clamp 101 prevent the mobile 103 from turning, which stops the needle 107 thus allowing the reading of the intermediate time.
  • the chronograph mobile 155 continues to rotate normally to indicate the current time using the hand 157.
  • the user actuates the control lever 147d again, which advances the mobile 141 and the cam 142 by an additional step.
  • This spacing is also made symmetrically and simultaneously for the two branches, thus avoiding any radial force on the wheel 102 of the chronograph mobile 103.
  • the mobile 103 is driven in rotation by the force exerted by the lever 171 which turns this wheel 102 until the roller falls back into the notch of the heart 173.
  • the needle 107 then caught up with the needle 157 to turn again in synchronism with it, the needles being rigorously superimposed.
  • each branch 109 and 111 of the clamp 101 is provided with an enlarged portion 129a, 129b, cooperating with a fixed pin 189 placed between the branches 109 and 111 and driven into the plate 114.
  • the portions 129a, 129b may have different lateral dimensions. This is the case in the embodiment shown in Figures 3 and 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Looms (AREA)
  • Toys (AREA)
EP91120949A 1990-12-11 1991-12-06 Uhr vom Typ eines Einholzeigerchronographs mit einer Vorrichtung zum Anhalten und Starten eines Einholzeigers Expired - Lifetime EP0490285B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3909/90 1990-12-11
CH3909/90A CH679969B5 (de) 1990-12-11 1990-12-11

Publications (2)

Publication Number Publication Date
EP0490285A1 true EP0490285A1 (de) 1992-06-17
EP0490285B1 EP0490285B1 (de) 1996-06-05

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ID=4266113

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EP91120949A Expired - Lifetime EP0490285B1 (de) 1990-12-11 1991-12-06 Uhr vom Typ eines Einholzeigerchronographs mit einer Vorrichtung zum Anhalten und Starten eines Einholzeigers

Country Status (6)

Country Link
US (1) US5122995A (de)
EP (1) EP0490285B1 (de)
JP (1) JPH04269689A (de)
CH (1) CH679969B5 (de)
DE (1) DE69120038T2 (de)
SG (1) SG42949A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1306733A2 (de) * 2001-10-23 2003-05-02 Franck Muller-Watchland SA Vorrichtung für Uhren
EP1475682A1 (de) * 2003-05-09 2004-11-10 Audemars Piguet (Renaud et Papi) SA Chronographuhr mit sofortiger Anzeige von Sekunden-Bruchteilen
WO2017098394A1 (fr) * 2015-12-09 2017-06-15 Patek Philippe Sa Geneve Mécanisme de rattrapante
EP3582029A1 (de) * 2018-06-14 2019-12-18 Patek Philippe SA Genève Rattrapanten-mechanismus und chronograph, der einen solchen mechanismus umfasst
EP3995906A1 (de) * 2020-11-05 2022-05-11 Timeforge Sàrl Digitaler anzeigemechanismus für schleppzeigerchronograph und chronograph mit einem solchen mechanismus
EP4202577A1 (de) * 2021-12-21 2023-06-28 Manufacture d'Horlogerie Audemars Piguet SA Wippevorrichtung eines uhrwerks

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5687081A (en) * 1994-12-30 1997-11-11 Crown Equipment Corporation Lift truck control system
JP2004022385A (ja) * 2002-06-18 2004-01-22 Toshiba Lighting & Technology Corp 蛍光ランプの製造方法、蛍光ランプおよび照明装置
DE102004017345B3 (de) * 2004-04-06 2005-09-01 Lange Uhren Gmbh Chronograph
EP1970780B1 (de) 2007-03-12 2013-03-06 Audemars Piguet (Renaud et Papi) SA Uhrvorrichtung zur automatischen Anpassung der relativen Winkelposition von zwei beweglichen Teilen zueinander an einen Phasenverschiebungswert
CH706021B1 (fr) * 2007-11-21 2013-07-31 Frank Mueller Watchland S A Mouvement horloger du type chronographe à rattrapante et pièce d'horlogerie munie d'un tel mouvement.
CH700302A2 (de) * 2009-01-21 2010-07-30 Montblanc Simplo Gmbh Chronograph.
CH703008A1 (fr) * 2010-04-23 2011-10-31 Francois-Regis Richard Mecanisme de chronographe, mouvement horloger et piece d'horlogerie comprenant un tel mecanisme.
CH703837B1 (fr) * 2010-09-29 2015-01-30 Montre Hermès S A Pièce d'horlogerie.
EP2703912B1 (de) * 2012-09-03 2015-03-25 Richemont International S.A. Unruhanhaltevorrichtung für Uhren mit Drehgestell
JP6564561B2 (ja) * 2013-05-31 2019-08-21 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ 時間情報を記憶及び表示するための時計機構
US8923096B1 (en) 2013-10-17 2014-12-30 Timex Group Usa, Inc. Method of displaying elapsed time on a wristworn device and wristworn device displaying same
EP3185090B1 (de) * 2015-12-23 2019-10-23 Rolex Sa Zähler- und anzeigevorrichtung einer fraktion einer zeiteinheit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US253338A (en) * 1882-02-07 audemars
CH38824A (fr) * 1906-10-23 1907-12-15 Friedrich Sjoegren Oscar Dispositif pour diminuer la friction et la torsion de la roue de chronographe
CH337151A (fr) * 1958-03-13 1959-03-15 Depraz & Cie Pièce d'horlogerie à aiguille rattrapante

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US550182A (en) * 1895-11-19 lecoultre-piguet
US2548101A (en) * 1946-03-12 1951-04-10 Dubey Georges Split seconds flyback chronograph
JPS5451867A (en) * 1977-09-30 1979-04-24 Citizen Watch Co Ltd Watch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US253338A (en) * 1882-02-07 audemars
CH38824A (fr) * 1906-10-23 1907-12-15 Friedrich Sjoegren Oscar Dispositif pour diminuer la friction et la torsion de la roue de chronographe
CH337151A (fr) * 1958-03-13 1959-03-15 Depraz & Cie Pièce d'horlogerie à aiguille rattrapante

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1306733A2 (de) * 2001-10-23 2003-05-02 Franck Muller-Watchland SA Vorrichtung für Uhren
EP1306733A3 (de) * 2001-10-23 2007-01-24 Franck Muller-Watchland SA Vorrichtung für Uhren
EP1475682A1 (de) * 2003-05-09 2004-11-10 Audemars Piguet (Renaud et Papi) SA Chronographuhr mit sofortiger Anzeige von Sekunden-Bruchteilen
EP2249215A3 (de) * 2003-05-09 2016-09-07 Audemars Piguet (Renaud et Papi) SA Chronographuhr mit sofortiger Anzeige von Sekunden-Bruchteilen
WO2017098394A1 (fr) * 2015-12-09 2017-06-15 Patek Philippe Sa Geneve Mécanisme de rattrapante
EP3582029A1 (de) * 2018-06-14 2019-12-18 Patek Philippe SA Genève Rattrapanten-mechanismus und chronograph, der einen solchen mechanismus umfasst
EP3995906A1 (de) * 2020-11-05 2022-05-11 Timeforge Sàrl Digitaler anzeigemechanismus für schleppzeigerchronograph und chronograph mit einem solchen mechanismus
EP4202577A1 (de) * 2021-12-21 2023-06-28 Manufacture d'Horlogerie Audemars Piguet SA Wippevorrichtung eines uhrwerks
WO2023119079A1 (fr) 2021-12-21 2023-06-29 Manufacture D' Horlogerie Audemars Piguet Sa Dispositif de bascule d'un mécanisme horloger

Also Published As

Publication number Publication date
US5122995A (en) 1992-06-16
EP0490285B1 (de) 1996-06-05
DE69120038D1 (de) 1996-07-11
DE69120038T2 (de) 1997-01-16
JPH04269689A (ja) 1992-09-25
SG42949A1 (en) 1997-10-17
CH679969B5 (de) 1992-11-30
CH679969GA3 (de) 1992-05-29

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