FR2570425A1 - Spring lock having anti-pick pre-tumblers - Google Patents

Spring lock having anti-pick pre-tumblers Download PDF

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Publication number
FR2570425A1
FR2570425A1 FR8414460A FR8414460A FR2570425A1 FR 2570425 A1 FR2570425 A1 FR 2570425A1 FR 8414460 A FR8414460 A FR 8414460A FR 8414460 A FR8414460 A FR 8414460A FR 2570425 A1 FR2570425 A1 FR 2570425A1
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France
Prior art keywords
bars
barrel
lock
tumblers
channels
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Granted
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FR8414460A
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French (fr)
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FR2570425B1 (en
Inventor
Jean Malbranque
Jean-Pierre Ibba
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Individual
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Individual
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Priority to FR8414460A priority Critical patent/FR2570425B1/en
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Publication of FR2570425B1 publication Critical patent/FR2570425B1/en
Expired legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/02Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key
    • E05B27/08Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially
    • E05B27/086Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially of the bar-tumbler type, the bars having slots or protrusions in alignment upon opening the lock

Abstract

The invention relates to a spring lock having anti-pick pre-tumblers. The lock comprises a rotating cylinder 18 provided with a plurality of inner channels and with a coaxial circular groove 34 formed on its outer wall and intersecting the channels over a fraction of their depth, tumblers 20 mounted longitudinally slidably in said channels and each having at least one true notch 22,23 and one or more false notches 24 of a depth smaller than that of the true notch, a stop collar 35, fixed and possessing in the region of the cylinder a circular perforation of toothed profile, comprising a series of passages bordered by less deep steps. Likewise mounted slidably in the cylinder in front of said tumblers 20 are pre-tumblers 46 which are not connected to the tumblers in terms of axial movement and which are intended to prevent access to the tumblers by means of a tool.

Description

Serrure à pompe à pré-barret-s~anti-crochetables,
La présente invention concerne une serrure à pompe à pré-barrettes, munie d'un dispositif de sécurité anticrochetable.
Pump lock with pre-barret-s ~ anti-hookable,
The present invention relates to a pump lock with pre-bars, fitted with an anti-pickable safety device.

Avant d'exposer ltobjet de l'invention, on rappellera la structure d'une serrure à pompe à barrettes classiques et le principe de l'anti-crochetage, en se référant aux figures 1 à 3 annexées qui représentent respectivement une vue en coupe axiale d'une serrure à pompe dans laquelle est engagée une clé, une vue de faoe d'un collier d'arrêt classique et une vue en bout du rotor ou barillet de la serrure. Before exposing the object of the invention, the structure of a pump lock with conventional bars and the principle of anti-picking will be recalled, with reference to the appended figures 1 to 3 which respectively represent an axial section view. of a pump lock in which a key is engaged, a front view of a conventional stop collar and an end view of the rotor or barrel of the lock.

La serrure représentez à la figure 1 comprend dans sa partie centrale un corps 1 formé de deux plaques parallèles, à savoir le foncet 2 et le palâtre 3 solidarisés l'un de l'autre à écartement prédéterminé au moyen dtentretoi- ses. Les deux plaques sont percées de trous respectifs 4 et 5. Sur le foncet 2 se trouve fixé par son pied 6, le canon 7 de la serrure, qui consiste en une douille tubulaire dont le fond 13 présente un trou de passage 14 pour la clé 15. Sur le palatre 3 se trouve fixé par sertissage le dessous de serrure 16, également muni d'un trou 17 de passage d'une clé. The lock shown in Figure 1 comprises in its central part a body 1 formed of two parallel plates, namely the plug 2 and the plaster 3 secured to each other at a predetermined spacing by means of spacers. The two plates are pierced with respective holes 4 and 5. On the plug 2 is fixed by its foot 6, the barrel 7 of the lock, which consists of a tubular socket whose bottom 13 has a through hole 14 for the key 15. On the palatre 3 is fixed by crimping the underside of the lock 16, also provided with a hole 17 for passing a key.

Dans le volume cylindrique délimité par le canon 7 et le dessous 16, volume qui se trouve ouvert entre le plâtre 3 et le foncet 2 pour permettre l'actionnement d'un mécanisme de serrure non représenté, est monté rotatif un rotor tubulaire ou barillet 18. In the cylindrical volume delimited by the barrel 7 and the underside 16, a volume which is open between the plaster 3 and the wall 2 to allow the actuation of a lock mechanism not shown, a tubular rotor or barrel 18 is rotatably mounted .

Ce barrilet 18 consiste en un manchon sensiblement cylindrique présentant une série de rainures radiales internes ou canaux 19 (figure 3) s'étendant axialement d'un bout à l'autre du manchon. This barrel 18 consists of a substantially cylindrical sleeve having a series of internal radial grooves or channels 19 (Figure 3) extending axially from one end to the other of the sleeve.

Dans chacune de ces rainures 19 se trouve montée coulissante une barrette 20 présentant un retour 21 à chacune de ses extrémités et, sur sa bordure située à l'intérieur de la rainure 19, une série de tailles ou crans, à savoir deux vrais crans 22, 23, l'un avant, l'autre arrière, et plusieurs faux-crans 24, de profondeur moins importante, pouvant éventuellement être adjacents et en position aléatoire par rapport aux deux vrais crans 22, 23. In each of these grooves 19 is slidably mounted a bar 20 having a return 21 at each of its ends and, on its edge located inside the groove 19, a series of sizes or notches, namely two real notches 22 , 23, one front, the other rear, and several false notches 24, of lesser depth, which may possibly be adjacent and in a random position relative to the two real notches 22, 23.

Ces barrettes 20 se trouvent par ailleurs maintenues, du côté du centre du barillet 18, par un manchon interne 26 qui est fermé du côté arrière par un fond 27 et dans lequel se trouve disposé un ressort de compression 25 ressortant à l'extérieur et venant en appui sur un bouchon coulissant 28 retenu dtun côté par un épaulement 29 de ltalésage du barillet 18. These bars 20 are also held, on the side of the center of the barrel 18, by an internal sleeve 26 which is closed on the rear side by a bottom 27 and in which is located a compression spring 25 coming out from the outside and coming resting on a sliding plug 28 retained on one side by a shoulder 29 of the bore of the barrel 18.

Ce manchon interne se trouve par ailleurs retenu du côté du dessous de serrure 16 par un bouchon 30 monté dans le dessous 16 et duquel partent des pattes axiales 31, dont les extrémités viennent porter sur le fond 27 du manchon 26. This internal sleeve is moreover retained on the side of the lock underside 16 by a plug 30 mounted in the underside 16 and from which extend axial lugs 31, the ends of which come to bear on the bottom 27 of the sleeve 26.

Le barillet 18 présente en outre, à chacune de ses extrémités,une fente axiale 32 destinée à permettre le passage du panneton 33 de la clé 15 et, ensuite, ltentraine- ment du barillet par la clé, ainsi que, dans un plan sensiblement adjacent au foncet 2, une gorge circulaire coa xiale 34, qui recoupe les crans 19 jusqu'à atteindre au moins le fond des vrais crans 22, 23 des barrettes 20. The barrel 18 also has, at each of its ends, an axial slot 32 intended to allow the passage of the bit 33 of the key 15 and, then, the driving of the barrel by the key, as well as, in a substantially adjacent plane at the bottom 2, a coaxial circular groove 34, which intersects the notches 19 until at least reaching the bottom of the real notches 22, 23 of the bars 20.

Dans cette gorge 34 vient s'engager un collier dtarrat 35, (figure 2) réalisé en deux parties 35', 35", qui se fixent par exemple par vissage sur le foncet 2
Ce collier dtarrêt 35 comporte un perçage circulaire dentelé par une série de passages, à raison d'un passage 36 par rainure 19 du rotor 18, ce passage 36 étant bordé par deux escaliers 37 de profondeur inférieure (la moitié de la profondeur des passages 36). Par ailleurs, la position angulaire des passages 36 correspond à celle des rainures 19 du barillet 18.
In this groove 34 is engaged a collar dtarrat 35, (Figure 2) made in two parts 35 ', 35 ", which are fixed for example by screwing on the land 2
This stop collar 35 comprises a circular hole serrated by a series of passages, at the rate of a passage 36 by groove 19 of the rotor 18, this passage 36 being bordered by two staircases 37 of lower depth (half the depth of the passages 36 ). Furthermore, the angular position of the passages 36 corresponds to that of the grooves 19 of the barrel 18.

Les passages 36 permettent, au repos, le libre coulissement axial des barrettes 20. Par contre, ils interdisent toute rotation du barillet 18, tant que les barrettes 20 ne se trouvent pas en position d'ouverture, clest-à-dire tant que les vrais crans 22, 23 de ces barrettes 20 (avant ou arrière) ne se trouvent pas toutes au droit du collier d'arrêt 35. Lorsque les faux-crans 24 se présentent au droit du collier d'arêt 35, un début de rotation du barillet 18 a lieu, mais il est limité par le bord de l'escalier 37. The passages 36 allow, at rest, the free axial sliding of the bars 20. On the other hand, they prohibit any rotation of the barrel 18, as long as the bars 20 are not in the open position, ie as long as the true notches 22, 23 of these bars 20 (front or rear) are not all located at the right of the stop collar 35. When the false notches 24 are presented at the right of the stop collar 35, a start of rotation of the barrel 18 takes place, but it is limited by the edge of the staircase 37.

Lorsquton introduit la clé 15 dans la serrure (figure 1), sa pointe 40 vient décoller-le bouchon 28 de son siège 29 et l'enfonce à l'encontre du ressort 25. A mesure que la clé est enfoncée, ses tailles 42 viennent l'une après l'autre en appui contre les barrettes 20,de sorte qu'en position finale de la clé, les vrais crans 23 de toutes les barrettes se trouvent au niveau des passages 36 du collier dearr8t. Le panneton 33 se trouve à ce moment engagé dans la fente 32 du barillet 18. Celui-ci peut donc être entrainé librement. Par contre, si l'on essaye de crocheter les barrettes en essayant de les faire coulisser le long du collier d'arrêt un vrai cran peut se présenter en regard de ce dernier, mais aussi un faux=cran. When the key 15 is inserted into the lock (FIG. 1), its tip 40 comes to peel off the plug 28 from its seat 29 and presses it against the spring 25. As the key is pressed, its sizes 42 come one after the other pressing against the bars 20, so that in the final position of the key, the real notches 23 of all the bars are located at the passages 36 of the dearr8t collar. The bit 33 is at this moment engaged in the slot 32 of the barrel 18. The latter can therefore be driven freely. On the other hand, if we try to crochet the bars while trying to make them slide along the stop collar, a real notch may appear next to the latter, but also a false = notch.

Etant donné que pour chaque barrette il y a trois positionnements possibles S correspondant au vrai cran et aux deux faux-crans, on obtient 729 possibilités de crochetage0 Il sera donc très difficile dVouvrir une telle serrure0
La présente invention concerne des perfectionnements apportés aux serrures du type de celle précédemment décrite, dans le but de rendre impossible son crochetage.
Since for each bar there are three possible positions S corresponding to the real notch and to the two false notches, one obtains 729 possibilities of hooking0 It will therefore be very difficult to open such a lock0
The present invention relates to improvements made to locks of the type described above, in order to make it impossible to pick.

On peut en effet concevoir qu?à force de patience, l'ouvreur pourra localiser sur chaque barrette les vrais crans et les faux-crans
Le perfectionnement de la serrure selon l'invention réside dans le fait que dans le barillet sont également montées coulissantes, en avant desdites barrettes, des pré-barrettes non lie aux barrettes en mouvement axial.
One can indeed imagine that by dint of patience, the opener will be able to locate on each bar the real notches and the false notches
The improvement of the lock according to the invention resides in the fact that in the barrel are also slidably mounted, in front of said bars, pre-bars not connected to the bars in axial movement.

Lot de l'introduction de la clé dans la serrure, ces pré-barrettes transmettent intégralement le mouvement axial de la clé aux barrettes, mais si on les tire vers lavant du canon, elles avancent seules sans entraîner les barrettes. Elles constituent donc des caches qui empochent 1 accès aux barrettes et donc le crochetage de la serrure,
Un mode de réalisation de l'invention sera décrit à présent en regard des dessins annexés dans lesquels
La figure 4 représente une vue en coupe axiale de la serrure ; et
La figure 5 montre une vue en bout du barillet de la figure 4.
Lot of the introduction of the key in the lock, these pre-bars fully transmit the axial movement of the key to the bars, but if they are pulled towards the front of the barrel, they advance alone without driving the bars. They therefore constitute caches which pocket 1 access to the bars and therefore the picking of the lock,
An embodiment of the invention will now be described with reference to the accompanying drawings in which
Figure 4 shows an axial sectional view of the lock; and
FIG. 5 shows an end view of the barrel of FIG. 4.

La serrure de la figure 4 présentant de grandes analogies avec celle de la figure 1, on n'en décrira que les éléments nouveaux. Les éléments identiques sur les deux figures porteront les mêmes références numériques. The lock of Figure 4 having great analogies with that of Figure 1, we will only describe the new elements. Identical elements in the two figures will bear the same numerical references.

Dans chacun des canaux 19 du barillet 18, et en avant de la barrette 20 qui y est logée, est montée coulissante une pré-barrette 46 qui est constituée par une plaquette métallique de hauteur égale à la hauteur totale de la barrette, y compris la tête de barrette 21. In each of the channels 19 of the barrel 18, and in front of the bar 20 which is housed therein, is slidably mounted a pre-bar 46 which is constituted by a metal plate of height equal to the total height of the bar, including the strip head 21.

Ainsi, les tailles 42 de la clé 15 ne s'appuient plus sur les têtes 21, mais sur les pré-barrettes. Pour éviter d'allonger la pointe pour qu'elle arrive jusqu'au bouchon, ce qui la fragiliserait, il est prévu selon l'invention de former sur la face arrière du bouchon 28 une queue axiale 48 ayant la longueur voulue. Thus, the sizes 42 of the key 15 are no longer based on the heads 21, but on the pre-bars. To avoid lengthening the tip so that it reaches the stopper, which would weaken it, it is provided according to the invention to form on the rear face of the stopper 28 an axial tail 48 having the desired length.

En vue de maintenir les pré-barrettes en position contre la paroi périphérique du barillet, chacune d'elles présente sur ses deux faces des nervures longitudinales 50 qui sont reçues dans des rainures longitudinales 52 de forme complémentaire, formées sur les flancs des canaux 19 du barillet. Ainsi, les pré-barrettes peuvent coulisser dans les canaux sans se déplacer radialement. In order to maintain the pre-bars in position against the peripheral wall of the barrel, each of them has on its two faces longitudinal ribs 50 which are received in longitudinal grooves 52 of complementary shape, formed on the sides of the channels 19 of the barrel. Thus, the pre-bars can slide in the channels without moving radially.

Elles sont indépendantes des barrettes et par conséquent, si on tentait de les tirer, les barrettes ne suivraient pas. Par contre, lorsque l'on introduit la clé dans la serrure, les barrettes transmettent-le mouvement axial de la clé aux barrettes. Les pré-barrettes ne modifient donc pas le fonctionement de la serrure, mais elles s'opposent à l'accès de tout outil aux têtes 21 des barrettes et empêchent également dtobserver l'intérieur de la serrure.They are independent of the bars and therefore, if we tried to pull them, the bars would not follow. On the other hand, when the key is inserted into the lock, the bars transmit the axial movement of the key to the bars. The pre-bars therefore do not modify the functioning of the lock, but they oppose the access of any tool to the heads 21 of the bars and also prevent the interior of the lock from being observed.

Le fonctionnement de la serrure est le suivant : au repos, les bouchons 26 et 28 sont sollicités par le ressort 25 en appui respectivement contre les pattes axiales 31 et contre ltépaulement 29. Lorsque la clé 15 est enfoncée dans le canon 7, elle repousse d'abord le bouchon 28 à l'encontre de la force du ressort, puis l'ensemble des pré-barrettes46 et barrettes 20. The operation of the lock is as follows: at rest, the plugs 26 and 28 are urged by the spring 25 bearing respectively against the axial tabs 31 and against the shoulder 29. When the key 15 is pressed into the barrel 7, it pushes back first the plug 28 against the force of the spring, then all of the pre-bars 46 and bars 20.

Dans la position finale de la clé, les vrais crans 23 des barrettes se trouvent en regard des passages 36 du collier d'arrêt 35, et le barillet 18 peut alors être entrainé en rotation par le panne ton 33 de la clé.In the final position of the key, the real notches 23 of the bars are located opposite the passages 36 of the stop collar 35, and the barrel 18 can then be driven in rotation by the breakdown of the key 33 of the key.

Il va de soi que du côté du dessous de serrure 16, il n'est pas nécessaire de mettre en place des pré-barrettes.  It goes without saying that on the underside of lock 16, it is not necessary to install pre-bars.

Claims (2)

REVENDICATIONS 1.- Serrure à pompe à pré-barrettes, du type comprenant un corps fixe (1) constitué de deux plaques parallèles appelées foncet (2) et palâtre (3), munies chacune d'un perçage circulaire (4, 5), un canon (7) et un dessous de serrure (16) respectivement fixés coaxialement dans lesdits perçages, un rotor tubulaire ou barillet (18) mont rotatif dans le canon et dans le dessous de serrure, ledit barillet étant pourvu dune pluralité de gorges longitu- dinales internes ou canaux (19) et d'une gorge circulaire coaxiale (34) formée sur la paroi latérale externe dans le plan du foncet et qui recoupe les canaux sur une fraction de leur profondeur, des barrettes (20) montées coulissantes longitudinalement dans lesdits canaux et présentant chacune au moins un vrai cran (22, 23) et un ou plusieurs faux-crans (24) de profondeur inférieure à celle du vrai cran, un collier arrêt (35) fixé sur le foncet (2) et qui présente au niveau du barillet un perçage circulaire à profil dentelé comprenant une série de passages (36) bordés par des escaliers (37) moins profonds, et des moyens (25 à 31) permettant le maintien en place et le rappel en position de repos des barrettes, caractérisée en ce que dans le barillet (18) sont également montées coulissantes en avant desdites barrettes(20), des prébarrettes(46) non liées aux barettesen mouvement axial et destinées à empêcher l'accès aux barrettes à un outil introduit par le trou de serrure du canon. 1.- Pump lock with pre-bars, of the type comprising a fixed body (1) consisting of two parallel plates called land (2) and plaster (3), each provided with a circular bore (4, 5), a barrel (7) and a lock underside (16) respectively fixed coaxially in said holes, a tubular rotor or barrel (18) rotatably mounted in the barrel and in the underside of lock, said barrel being provided with a plurality of longitudinal grooves internal or channels (19) and a coaxial circular groove (34) formed on the external side wall in the plane of the wall and which intersects the channels over a fraction of their depth, bars (20) slidably mounted longitudinally in said channels and each having at least one real notch (22, 23) and one or more false notches (24) of depth less than that of the real notch, a stop collar (35) fixed on the wall (2) and which has at the level of the barrel a circular hole with a serrated profile comprising a series passages (36) bordered by shallower stairs (37), and means (25 to 31) allowing the bars to be held in place and returned to the rest position, characterized in that in the barrel (18) are also sliding mounted in front of said bars (20), pre-bars (46) not linked to the bars in axial movement and intended to prevent access to the bars to a tool introduced by the keyhole of the barrel. 2.- Serrure à pompe à pré-prébarrettes solin la revendication 1, caractérisée en ce que les pré-barrettes (46) sont constituées par des plaquettes métalliques pourvues sur leurs faces de reliefs longitudinaux (-so) destinés à s'imbriquer dans des rainures complémentaires (52) formées dans le flanc des canaux (19) du barillet.  2.- Pump lock with flashing pre-strips according to claim 1, characterized in that the pre-strips (46) consist of metal plates provided on their faces with longitudinal reliefs (-so) intended to be nested in complementary grooves (52) formed in the side of the channels (19) of the barrel.
FR8414460A 1984-09-20 1984-09-20 POCKET LOCK WITH PRE-ROCKET BARS Expired FR2570425B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8414460A FR2570425B1 (en) 1984-09-20 1984-09-20 POCKET LOCK WITH PRE-ROCKET BARS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8414460A FR2570425B1 (en) 1984-09-20 1984-09-20 POCKET LOCK WITH PRE-ROCKET BARS

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FR2570425A1 true FR2570425A1 (en) 1986-03-21
FR2570425B1 FR2570425B1 (en) 1989-10-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670820A1 (en) * 1990-12-20 1992-06-26 Picard Key which is compatible with surface-mounted locks and with plug locks (cylinder locks) of the so-called European type
WO1998006959A1 (en) * 1996-08-14 1998-02-19 Edi Bondioli Torque limiting coupling with single re-engagement position
FR2910517A1 (en) * 2006-12-22 2008-06-27 Picard Serrures Soc Par Action Lock i.e. bramah lock, has insert receiving key for operating insert in external barrel, where key has mobile element for driving axial locking bolt toward unlocking position when rod is introduced in axial passage way

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2343107A1 (en) * 1976-03-02 1977-09-30 Initial Tamper proof tumbler lock - has sleeve between fixed and rotary key blocks with stacked discs to operate tumblers
FR2531127A1 (en) * 1982-08-02 1984-02-03 Picard Spring lock equipped with a movable anti-picking collar with detector and trap.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2343107A1 (en) * 1976-03-02 1977-09-30 Initial Tamper proof tumbler lock - has sleeve between fixed and rotary key blocks with stacked discs to operate tumblers
FR2531127A1 (en) * 1982-08-02 1984-02-03 Picard Spring lock equipped with a movable anti-picking collar with detector and trap.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670820A1 (en) * 1990-12-20 1992-06-26 Picard Key which is compatible with surface-mounted locks and with plug locks (cylinder locks) of the so-called European type
WO1998006959A1 (en) * 1996-08-14 1998-02-19 Edi Bondioli Torque limiting coupling with single re-engagement position
US6174238B1 (en) 1996-08-14 2001-01-16 Edi Bondioli Torque limiting coupling with single re-engagement position
FR2910517A1 (en) * 2006-12-22 2008-06-27 Picard Serrures Soc Par Action Lock i.e. bramah lock, has insert receiving key for operating insert in external barrel, where key has mobile element for driving axial locking bolt toward unlocking position when rod is introduced in axial passage way

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Publication number Publication date
FR2570425B1 (en) 1989-10-13

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