EP0566489A1 - Electric fence tape and net incorporating such tape - Google Patents

Electric fence tape and net incorporating such tape Download PDF

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Publication number
EP0566489A1
EP0566489A1 EP93400978A EP93400978A EP0566489A1 EP 0566489 A1 EP0566489 A1 EP 0566489A1 EP 93400978 A EP93400978 A EP 93400978A EP 93400978 A EP93400978 A EP 93400978A EP 0566489 A1 EP0566489 A1 EP 0566489A1
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EP
European Patent Office
Prior art keywords
tape
central core
electric fence
conductive
electric
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Granted
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EP93400978A
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German (de)
French (fr)
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EP0566489B1 (en
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Valéry Hamm
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/008—Fence-wire not otherwise provided for

Definitions

  • the present invention relates to tapes for electric fencing and, by extension, the present invention also relates to an electric net produced partially at least from such tapes.
  • An "electric fence” generally consists of an energizer which provides very short pulses, and conductors held in place, using insulators, on stakes.
  • These conductors can be in the form of wires, ribbons or nets.
  • the main advantage of the ribbons developed to date is that they are more visible. They are however of a high cost price and relatively fragile because of their composition and their method of manufacture.
  • the ribbons marketed to date are woven (see Figure 1) by assembling several monofilaments of small diameter plastic (in general strands of polyethylene from 0.15 to 0.25 mm) with a few conductive monofilaments (generally 0.15 to 0.25 mm diameter copper or stainless steel). These conductors, of too small diameter, are easily cut in a hostile environment when they are made of copper, and are bad conductors when they are made of stainless steel.
  • a ribbon of this type is described in document EP 0 274 454.
  • the ribbon chain consists of a large number of plastic wires, among which are conductive wires.
  • one or more conductive wires are arranged so as to cross, with the formation of an electrical contact, said conductive warp wires.
  • An object of the present invention is to provide a tape for electric fencing having high mechanical strength and capable of ensuring electrical continuity in the event of a break in one or more points of the electrical conductors.
  • the subject of the invention is a tape for electric fencing of the type comprising a central core and at least one conductive wire, for example metallic, characterized in that said central core is a strip of extruded plastic, and in that said conductive wire is wrapped around the central core following a flattened helical trajectory.
  • the invention also relates to a net for electric fencing, characterized in that it comprises at least one tape for electric fencing as described above.
  • Fig. 1 which corresponds to a ribbon of known type, for example from document FR-A-2 628 603
  • the chain consists of plastic wires 1, 2, 3 and conductive wires 4, 5, 6, and the weft consists of plastic threads such as 7. All of these threads are fine for easy braiding and are therefore fragile.
  • a large diameter conductive monofilament 8 surrounds along a trajectory resembling a flattened helicoid a strip of extruded plastic 9.
  • This embodiment has the advantage compared to traditional ribbons for electric fencing to be simpler to manufacture and therefore to be of a lower cost price with equal composition and quantity of material.
  • an electric fence tape in which the main electrical circuit from the energizer to the beast touching the tape, first includes the wire conductor then, for a short distance (always less than the width of the tape), the plastic strip itself.
  • the central core consists of an extruded plastic strip 9, to which is attached a conductive metal wire 10, the whole being held by a second conductive metal wire 8 wound along the same type of path than in the previous embodiment.
  • the central core consists of a plas band extruded tick 9, to which are attached two conductive metal wires 10 and 11, one on each side, the whole being held by a conductive metal wire 8 wound along the same type of path as in the previous cases.
  • Fig. 5 in a fourth embodiment of the invention, two conductive monofilaments 8, 12 of large or medium diameter, are wound around a strip of extruded plastic 9.
  • the winding is done for each of the wires 8, 12, according to the same type of trajectory as in the previous embodiment, but in opposite directions so as to cross by making electrical contact at each crossing point.
  • the use of large diameter conductors allows the invention to better resist electrical and mechanical attack, while existing woven ribbons are forced to confine themselves to small diameter conductors.
  • the fact that the conductors touch each other regularly keeps a reliable product in the event of a punctual break in a conductive wire, since there will be re-electrification from the next contact point.
  • the present invention also applies to electrical nets comprising one or more electrical tapes of the above type. These threads are also produced in a conventional manner, either by welding, or by knotting, or by stapling, or by any other process.
  • the invention makes it possible to maintain good visibility of the traditional tape while considerably improving the mechanical and electrical properties of the fence conductor, and this with a lower cost price due to the simplicity of the manufacturing process.

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  • Woven Fabrics (AREA)
  • Catching Or Destruction (AREA)
  • Laminated Bodies (AREA)
  • Decoration Of Textiles (AREA)

Abstract

The invention relates to electric fence tapes. The tape is produced by surrounding a central strip 9 of extruded plastic with one or more conductors 8, 12 wound in a flattened helicoid. The conductors 8, 12 may be of different metals, in order to make it possible to combine better electrical conductivity with better mechanical strength. The central strip 9 may itself be conducting. These electrical tapes can be used for manufacturing netting for electric fences. <IMAGE>

Description

La présente invention concerne des rubans pour clôture électrique et, par extension, la présente invention concerne également un filet électrique réalisé partiellement au moins à partir de tels rubans.The present invention relates to tapes for electric fencing and, by extension, the present invention also relates to an electric net produced partially at least from such tapes.

Une "clôture électrique" se compose généralement d'un électrificateur qui fournit les impulsions de très courte durée, et de conducteurs maintenus en place, à l'aide d'isolateurs, sur des piquets.An "electric fence" generally consists of an energizer which provides very short pulses, and conductors held in place, using insulators, on stakes.

Ces conducteurs peuvent se présenter sous forme de fils, de rubans ou de filets. Par rapport aux fils, le principal avantage des rubans mis au point à ce jour, est qu'ils sont plus visibles. Ils sont cependant d'un prix de revient élevé et relativement fragiles du fait de leur composition et de leur mode de fabrication. En effet, les rubans commercialisés à ce jour sont tissés (voirfigure 1) en assemblant plusieurs monofilaments de plastique de faible diamètre (en général des brins de polyéthylène de 0,15 à 0,25 mm) avec quelques monofilaments de conducteur (en général du cuivre ou de l'acier inoxydable de diamètre 0,15 à 0,25 mm). Ces conducteurs, de trop petit diamètre, se coupent facilement dans un environnement hostile lorsqu'il sont en cuivre, et sont mauvais conducteurs lorsqu'ils sont en acier inoxydable.These conductors can be in the form of wires, ribbons or nets. Compared to yarns, the main advantage of the ribbons developed to date is that they are more visible. They are however of a high cost price and relatively fragile because of their composition and their method of manufacture. Indeed, the ribbons marketed to date are woven (see Figure 1) by assembling several monofilaments of small diameter plastic (in general strands of polyethylene from 0.15 to 0.25 mm) with a few conductive monofilaments (generally 0.15 to 0.25 mm diameter copper or stainless steel). These conductors, of too small diameter, are easily cut in a hostile environment when they are made of copper, and are bad conductors when they are made of stainless steel.

De plus, exposés aux intempéries et aux arcs électriques répétitifs lors des contacts avec les herbes qui poussent, frottant jour et nuit contre les isolateurs, les rubans actuels se désagrègent trop rapidement, en particulier aux points de rupture de fil.In addition, exposed to bad weather and repetitive electric arcs during contact with the grasses that grow, rubbing day and night against the insulators, the current tapes disintegrate too quickly, in particular at the breaking points of the wire.

Un ruban de ce type est décrit dans le document EP 0 274 454. La chaîne du ruban est constituée d'un grand nombre de fils en matière plastique parmi lesquels sont disposés des fils conducteurs. De manière à assurer une continuité électrique même en cas de déchirement partiel du ruban, un ou plusieurs fils conducteurs sont disposés de manière à croiser, avec formation d'un contact électrique, lesdits fils conducteurs de chaîne.A ribbon of this type is described in document EP 0 274 454. The ribbon chain consists of a large number of plastic wires, among which are conductive wires. In order to ensure electrical continuity even in the event of partial tearing of the strip, one or more conductive wires are arranged so as to cross, with the formation of an electrical contact, said conductive warp wires.

Il est d'autre part connu, par le document FR-A-12 921, de constituer une tresse de fils conducteurs formés chacun d'une âme en coton sur laquelle est enroulé un fil conducteur plat. Autour de cette tresse est disposé en hélice, un autre conducteur. L'ensemble est souple et d'une grande résistance mécanique.It is also known, from document FR-A-12 921, to constitute a braid of conductive wires each formed from a cotton core on which a flat conductive wire is wound. Another conductor is arranged around this braid. The assembly is flexible and of great mechanical resistance.

Un but de la présente invention est de proposer un ruban pour clôture électrique présentant une grande résistance mécanique et susceptible d'assurer une continuité électrique en cas de rupture en un ou plusieurs points des conducteurs électriques.An object of the present invention is to provide a tape for electric fencing having high mechanical strength and capable of ensuring electrical continuity in the event of a break in one or more points of the electrical conductors.

L'invention a pour objet un ruban pour clôture électrique du type comportant une âme centrale et au moins un fil conducteur, par exemple métallique, caractérisé en ce que ladite âme centrale est une bande en matière plastique extrudée, et en ce que ledit fil conducteur est enroulé autour de l'âme centrale suivant une trajectoire en hélicoïde aplatie.The subject of the invention is a tape for electric fencing of the type comprising a central core and at least one conductive wire, for example metallic, characterized in that said central core is a strip of extruded plastic, and in that said conductive wire is wrapped around the central core following a flattened helical trajectory.

Selon d'autres modes de réalisation de l'invention :

  • - l'âme centrale est conductrice de l'électricité ;
  • - l'âme centrale comporte des conducteurs métalliques ;
  • - au moins deux fils métalliques conducteurs d'électricité entourent l'âme centrale suivant des trajectoires en hélicoïdes aplaties, lesdits conducteurs se croisant en un certain nombre de points avec établissement d'un contact ;
  • - l'un au moins des éléments conducteurs est au moins partiellement composé d'un métal possédant une bonne conductivité électrique, et l'un au moins des éléments conducteurs est au moins partiellement composé d'un métal possédant une bonne résistance mécanique ;
  • - l'un des fils conducteurs est en acier tandis que l'autre est en cuivre ou en aluminium.
According to other embodiments of the invention:
  • - the central core conducts electricity;
  • - the central core comprises metallic conductors;
  • - At least two electrically conductive metal wires surround the central core along paths in flattened helicoid, said conductors crossing at a certain number of points with establishment of a contact;
  • - At least one of the conductive elements is at least partially composed of a metal having good electrical conductivity, and at least one of the conductive elements is at least partially composed of a metal having good mechanical resistance;
  • - one of the conductive wires is made of steel while the other is made of copper or aluminum.

L'invention a également pour objet un filet pour clôture électrique, caractérisé en ce qu'il comporte au moins un ruban pour clôture électrique tel que décrit ci-dessus.The invention also relates to a net for electric fencing, characterized in that it comprises at least one tape for electric fencing as described above.

L'invention est décrite ci-après avec référence aux dessins annexés sur lesquels on peut voir :

  • Fig. 1 : une vue schématique d'un ruban tissé de type connu,
  • Fig. 2 à Fig.5 : divers modes de réalisation de rubans pour clôture électrique selon l'invention.
The invention is described below with reference to the accompanying drawings on which we can see:
  • Fig. 1: a schematic view of a woven ribbon of known type,
  • Fig. 2 in Fig. 5: various embodiments of tapes for electric fencing according to the invention.

Sur la Fig. 1, qui correspond à un ruban de type connu, par exemple par le document FR-A-2 628 603, la chaîne est constituée de fils de matière plastique 1, 2, 3 et de fils conducteurs 4, 5, 6, et la trame est constituée de fils de matière plastique tels que 7. Tous ces fils sont fins pour être tressés facilement et sont donc fragiles.In Fig. 1, which corresponds to a ribbon of known type, for example from document FR-A-2 628 603, the chain consists of plastic wires 1, 2, 3 and conductive wires 4, 5, 6, and the weft consists of plastic threads such as 7. All of these threads are fine for easy braiding and are therefore fragile.

Sur la Fig. 2, dans un premier mode de réalisation de l'invention, un monofilament conducteur de gros diamètre 8, entoure suivant une trajectoire ressemblant à une hélicoïde aplatie une bande de plastique extrudé 9. Ce mode de réalisation présente l'avantage par rapport aux rubans traditionnels pour clôture électrique d'être plus simple à fabriquer et donc d'être d'un prix de revient moins élevé à composition et quantité de matière égales. De plus avec l'apparition de nouveaux plastiques plus ou moins conducteurs, il est possible de fabriquer un ruban de clôture électrique dans lequel le circuit électrique principal depuis l'électrificateur jusqu'à la bête venant toucher le ruban, comprend d'abord le fil conducteur puis, sur une courte distance (toujours inférieure à la largeur du ruban), la bande plastique elle-même.In Fig. 2, in a first embodiment of the invention, a large diameter conductive monofilament 8, surrounds along a trajectory resembling a flattened helicoid a strip of extruded plastic 9. This embodiment has the advantage compared to traditional ribbons for electric fencing to be simpler to manufacture and therefore to be of a lower cost price with equal composition and quantity of material. In addition with the appearance of new more or less conductive plastics, it is possible to manufacture an electric fence tape in which the main electrical circuit from the energizer to the beast touching the tape, first includes the wire conductor then, for a short distance (always less than the width of the tape), the plastic strip itself.

Sur la Fig. 3 dans un deuxième mode de réalisation, l'âme centrale est constituée d'une bande plastique extrudée 9, à laquelle est accolé un fil métallique conducteur 10, le tout étant maintenu par un second fil métallique conducteur 8 enroulé suivant le même type de trajectoire que dans le mode de réalisation précédent.In Fig. 3 in a second embodiment, the central core consists of an extruded plastic strip 9, to which is attached a conductive metal wire 10, the whole being held by a second conductive metal wire 8 wound along the same type of path than in the previous embodiment.

Sur la Fig. 4, dans un troisième mode de réalisation, l'âme centrale est constituée d'une bande plastique extrudée 9, à laquelle sont accolés deux fils métalliques conducteurs 10 et 11, un de chaque côté, le tout étant maintenu par un fil métallique conducteur 8 enroulé suivant le même type de trajectoire que dans les cas précédents.In Fig. 4, in a third embodiment, the central core consists of a plas band extruded tick 9, to which are attached two conductive metal wires 10 and 11, one on each side, the whole being held by a conductive metal wire 8 wound along the same type of path as in the previous cases.

Sur la Fig. 5 dans un quatrième mode de réalisation de l'invention , deux monofilaments conducteurs 8, 12 de gros ou moyen diamètre, sont enroulés autour d'une bande de plastique extrudé 9. L'enroulement se fait pour chacun des fils 8, 12, selon le même type de trajectoire qu'au mode de réalisation précédent, mais en sens opposés de façon à se croiser en faisant contact électrique à chaque point de croisement. L'utilisation de conducteurs de gros diamètre permet à l'invention de mieux résister aux agressions électriques et mécaniques, alors que les rubans tissés existants sont obligés de se cantonner aux conducteurs de petit diamètre. Le fait que les conducteurs se touchent régulièrement permet de conserver un produit fiable en cas de rupture ponctuelle d'un fil conducteur, car il y aura réélectrification dès le point de contact suivant. Il est encore possible améliorer l'invention, en choisissant des fils conducteurs de natures et de diamètres différents de façon à ce que l'un d'eux améliore les caractéristiques électriques du produit quand l'autre améliore les caractéristiques mécaniques. Les caractéristiques techniques du produit peuvent ainsi être améliorées en mariant des métaux aux propriétés différentes, tels que, d'une part, le cuivre et l'aluminium pour leur meilleure conductivité et, d'autre part, l'acier pour sa meilleure résistance mécanique.In Fig. 5 in a fourth embodiment of the invention, two conductive monofilaments 8, 12 of large or medium diameter, are wound around a strip of extruded plastic 9. The winding is done for each of the wires 8, 12, according to the same type of trajectory as in the previous embodiment, but in opposite directions so as to cross by making electrical contact at each crossing point. The use of large diameter conductors allows the invention to better resist electrical and mechanical attack, while existing woven ribbons are forced to confine themselves to small diameter conductors. The fact that the conductors touch each other regularly keeps a reliable product in the event of a punctual break in a conductive wire, since there will be re-electrification from the next contact point. It is still possible to improve the invention, by choosing conductive wires of different natures and diameters so that one of them improves the electrical characteristics of the product while the other improves the mechanical characteristics. The technical characteristics of the product can thus be improved by combining metals with different properties, such as, on the one hand, copper and aluminum for their better conductivity and, on the other hand, steel for its better mechanical resistance. .

La présente invention s'applique aussi aux filets électriques comportant un ou plusieurs rubans électriques du type ci-dessus. Ces filets sont réalisés par ailleurs de façon classique, soit par soudage, soit par nouage, soit par agrafage, ou par tout autre procédé.The present invention also applies to electrical nets comprising one or more electrical tapes of the above type. These threads are also produced in a conventional manner, either by welding, or by knotting, or by stapling, or by any other process.

Grâce à ces dispositions, l'invention permet de conserver la bonne visibilité du ruban traditionnel tout en améliorant considérablement les propriétés mécaniques et électriques du conducteur de clôture, et cela avec un prix de revient moindre du fait de la simplicité du processus de fabrication.Thanks to these provisions, the invention makes it possible to maintain good visibility of the traditional tape while considerably improving the mechanical and electrical properties of the fence conductor, and this with a lower cost price due to the simplicity of the manufacturing process.

Claims (7)

1. Ruban pour clôture électrique du type comportant une âme centrale et au moins un fil conducteur, par exemple métallique, caractérisé en ce que ladite âme centrale est une bande (9) en matière plastique extrudée, et en ce que ledit fil conducteur (8) est enroule autour de l'âme centrale suivant une trajectoire en hélicoïde aplatie.1. Tape for electric fencing of the type comprising a central core and at least one conductive wire, for example metallic, characterized in that said central core is a strip (9) of extruded plastic, and in that said conductive wire (8 ) is wrapped around the central core following a flattened helical trajectory. 2. Ruban pour clôture électrique selon la revendication 1, caractérisé en ce que l'âme centrale (9) est conductrice de l'électricité.2. Tape for electric fence according to claim 1, characterized in that the central core (9) is electrically conductive. 3. Ruban pour clôture électrique selon la revendication 1 ou la revendication 2, caractérisé en ce que l'âme centrale (9) comporte des conducteurs métalliques (10, 11).3. Tape for electric fence according to claim 1 or claim 2, characterized in that the central core (9) comprises metallic conductors (10, 11). 4. Ruban pour clôture électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que au moins deux fils métalliques conducteurs d'électricité (8, 12) entourent l'âme centrale (9) suivant des trajectoires en hélicoïdes aplaties, lesdits conducteurs (8, 12) se croisant en un certain nombre de points avec établissement d'un contact.4. Ribbon for electric fence according to any one of the preceding claims, characterized in that at least two electrically conductive metal wires (8, 12) surround the central core (9) along paths in flattened helicoid, said conductors (8, 12) crossing at a certain number of points with establishment of a contact. 5. Ruban pour clôture électrique selon l'une quelconque des revendications 2 à 4, caractérisé en ce que l'un au moins des éléments conducteurs (8) est au moins partiellement composé d'un métal possédant une bonne conductivité électrique, et l'un au moins des éléments conducteurs (12) est au moins partiellement compose d'un métal possédant une bonne résistance mécanique.5. Tape for electric fence according to any one of claims 2 to 4, characterized in that at least one of the conductive elements (8) is at least partially composed of a metal having good electrical conductivity, and the at least one of the conductive elements (12) is at least partially composed of a metal having good mechanical strength. 6. Ruban pour clôture électrique selon le revendication 5, caractérisé en ce que l'un (8) des fils conducteurs est en acier tandis que l'autre (12) est en cuivre ou en aluminium.6. Tape for electric fencing according to claim 5, characterized in that one (8) of the conductive wires is made of steel while the other (12) is made of copper or aluminum. 7. Filet pour clôture électrique, caractérisé en ce qu'il comporte au moins un ruban pour clôture électrique conforme à l'une des revendications 1 à 5.7. Net for electric fence, characterized in that it comprises at least one tape for electric fence according to one of claims 1 to 5.
EP93400978A 1992-04-17 1993-04-15 Electric fence tape and net incorporating such tape Expired - Lifetime EP0566489B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9205031 1992-04-17
FR9205031A FR2690047B1 (en) 1992-04-17 1992-04-17 TAPE FOR ELECTRIC FENCE AND THREAD MADE FROM THIS TAPE.

Publications (2)

Publication Number Publication Date
EP0566489A1 true EP0566489A1 (en) 1993-10-20
EP0566489B1 EP0566489B1 (en) 1994-10-05

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Application Number Title Priority Date Filing Date
EP93400978A Expired - Lifetime EP0566489B1 (en) 1992-04-17 1993-04-15 Electric fence tape and net incorporating such tape

Country Status (5)

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EP (1) EP0566489B1 (en)
AT (1) ATE112449T1 (en)
DE (1) DE69300012T2 (en)
ES (1) ES2065785T3 (en)
FR (1) FR2690047B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1099371A1 (en) * 1999-11-09 2001-05-16 Trumpf GmbH Electric fencing wire and cord
EP3183956A1 (en) * 2015-12-22 2017-06-28 Arcelormittal Bissen & Bettembourg Electric wire fence

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR12921E (en) * 1908-03-10 1910-12-16 Hippolyte Meunier Flexible conductor cord
FR2628603A1 (en) * 1988-03-16 1989-09-22 Guardiola Georges Conductor for electric fences
EP0369910A1 (en) * 1988-10-24 1990-05-23 S.A. SCHOUTTETEN &amp; FROIDURE Electrified ribbon for a fencing
EP0274454B1 (en) * 1987-01-06 1993-03-10 Gallagher Electronics Limited Fencing tape

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4018195A1 (en) * 1990-05-26 1991-11-28 Straehle & Hess Electrical conductor - is ribbon laid in strips to leave open spaces without cutting the continuous electrical wire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR12921E (en) * 1908-03-10 1910-12-16 Hippolyte Meunier Flexible conductor cord
EP0274454B1 (en) * 1987-01-06 1993-03-10 Gallagher Electronics Limited Fencing tape
FR2628603A1 (en) * 1988-03-16 1989-09-22 Guardiola Georges Conductor for electric fences
EP0369910A1 (en) * 1988-10-24 1990-05-23 S.A. SCHOUTTETEN &amp; FROIDURE Electrified ribbon for a fencing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1099371A1 (en) * 1999-11-09 2001-05-16 Trumpf GmbH Electric fencing wire and cord
EP3183956A1 (en) * 2015-12-22 2017-06-28 Arcelormittal Bissen & Bettembourg Electric wire fence
LU92922B1 (en) * 2015-12-22 2017-07-14 Arcelormittal Bissen & Bettembourg Electric wire fence

Also Published As

Publication number Publication date
ES2065785T3 (en) 1995-02-16
ATE112449T1 (en) 1994-10-15
EP0566489B1 (en) 1994-10-05
DE69300012T2 (en) 1995-03-09
FR2690047B1 (en) 1995-06-16
DE69300012D1 (en) 1994-11-10
FR2690047A1 (en) 1993-10-22

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