EP2520731B1 - Brick coupling system - Google Patents

Brick coupling system Download PDF

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Publication number
EP2520731B1
EP2520731B1 EP10840621.6A EP10840621A EP2520731B1 EP 2520731 B1 EP2520731 B1 EP 2520731B1 EP 10840621 A EP10840621 A EP 10840621A EP 2520731 B1 EP2520731 B1 EP 2520731B1
Authority
EP
European Patent Office
Prior art keywords
brick
face
main face
bricks
projections
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.)
Active
Application number
EP10840621.6A
Other languages
German (de)
French (fr)
Other versions
EP2520731A4 (en
EP2520731A1 (en
Inventor
Pablo Martín Lozano
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PL10840621T priority Critical patent/PL2520731T3/en
Priority to RS20191322A priority patent/RS59486B1/en
Publication of EP2520731A1 publication Critical patent/EP2520731A1/en
Publication of EP2520731A4 publication Critical patent/EP2520731A4/en
Application granted granted Critical
Publication of EP2520731B1 publication Critical patent/EP2520731B1/en
Priority to HRP20191868TT priority patent/HRP20191868T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/04—Walls having neither cavities between, nor in, the solid elements
    • E04B2/06—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position
    • E04B2/10—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position by filling material with or without reinforcements in small channels in, or in grooves between, the elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/14—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
    • E04B2/16—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position
    • E04B2/18—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/42—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities
    • E04B2/44—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities using elements having specially-designed means for stabilising the position; Spacers for cavity walls
    • E04B2/46—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities using elements having specially-designed means for stabilising the position; Spacers for cavity walls by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
    • E04B2002/0206—Non-undercut connections, e.g. tongue and groove connections of rectangular shape

Definitions

  • This invention refers to a brick coupling system of the type used in the construction of dwellings, which yields important savings in the building of the walls and permits at the same time to obtain better thermal coefficients.
  • masonry works usually designated as masonry
  • stone materials such as: clay bricks, cement mortar blocks, stone and other materials of the same or similar origin to those mentioned.
  • the bricks are used in the building of closing walls, façades and partition walls. They are preferably used to build walls or separating walls. Although they may be assembled without any binding product, usually they are bound with a mortar mass.
  • the arrangement of the bricks in the wall is called brick layout and a wide variety of forms of bricks layout are known in this field.
  • mortar it is to be understood a combination of binding materials and agglomerates formed by cement, fine aggregates and water.
  • mortar is used in masonry works as binding material, coating for walls, etc.
  • US 3,791,090 discloses a building block having dovetail tongue and groove configuration for interlocking with adjacent blocks by sliding in a longitudinal direction.
  • the dovetail tongue protrudes outwardly from one side of the block and has two widened longitudinal end portions have a cross-sectional shape defining an inverted triangular wedge which end portions are interconnected by an intermediate portion rectangular in cross section which intermediate portion extends one-third the length of the tongue.
  • the opposite side surface of the block has a complementary shape inverse to that of the tongue forming a groove of constant depth.
  • each brick has a main face and a secondary face opposite to the main face, the main face being the lower surface in installed state of said brick, wherein said main face has projections, which are perpendicular to the main face, wherein the secondary face includes to the projections corresponding cavities , said cavities being axially aligned with said perpendicular projections,said perpendicular projections having substantially rectangular geometry cross-section,the end portions of the perpendicular projections being provided with slight widenings,said main face being further provided with longitudinal protrusions for delimitation of the horizontal displacement between two adjacent bricks stacked upon each other,wherein the longitudinal protrusions coincide with the external edges of the corresponding cavities of the secondary face.
  • Said joining system 1 comprises at least one brick 2 that in this particular embodiment is a brick of the type called thermal brick.
  • the thermal concrete brick is a prefabricated body with the form of a straight prism made out of light aggregates, for its use in the construction of walls. It is made out of light aggregates from volcanic origin which confer higher thermal characteristics than those of the red baked bricks and normal concrete blocks.
  • thermal bricks are manufactured using light aggregates, a final product is obtained that given its light weight, has excellent thermal characteristics as compared to the traditional systems for the construction of walls (blocks and baked bricks). Its main application consists in the construction of walls for dwellings, commercial buildings, etc. in which an objective is to obtain thermal efficiency.
  • the brick 2 has a main face 3 and a secondary face 4 opposite the main face.
  • the main and secondary faces may be the lower and upper faces respectively or viceversa, depending on the arrangement of the brick 1 at the moment of being applied to the construction. It is to be remarked as well that it is possible to define said faces as male face and female face, due to its embedding together at the moment of application of the system of the present invention.
  • the main face 3 has perpendicular projections 5 which define a means for the displacement of material.
  • each of the perpendicular projections 5 has a substantially rectangular geometrical shape having in its end portions small widenings 7. These widenings 7 define means for holding the displaced material.
  • some means for delimitation of the displacement will be provided, which means are defined by the lengthwise protrusions 8.
  • To the secondary face 4 comprises corresponding cavities 6 which define a means for the location of the displaced material.
  • the operator when locating the second brick 1, the operator should place the main face 2 opposite to the secondary face 3 of the first brick. After locating one brick on the other and due to the fact that the projections 5 stand out slightly, the same cause the mortar 9 to start displacing entering within the cavities 6, as shown in figure 2 . Afterwards, the pressure is continued until both bricks contact each other by its internal faces. Additionally, the lengthwise protrusions 8 maintain the alignment of the wall, preventing the bricks to laterally offset. permitting to apply the characteristics defined in the annexed claims.
  • the brick 2 has a main face 3 and a secondary face 4 opposite the main face.
  • the main and secondary faces may be the lower and upper faces respectively or viceversa, depending on the arrangement of the brick 1 at the moment of being applied to the construction. It is to be remarked as well that it is possible to define said faces as male face and female face, due to its embedding together at the moment of application of the system of the present invention.
  • the main face 3 has perpendicular projections 5 which define a means for the displacement of material.
  • each of the perpendicular projections 5 has a substantially rectangular geometrical shape having in its end portions small widenings 7. These widenings 7 define means for holding the displaced material.
  • some means for delimitation of the displacement will be provided, which means are defined by the lengthwise protrusions 8.
  • To the secondary face 4 comprises corresponding cavities 6 which define a means for the location of the displaced material.
  • the operator when locating the second brick 1, the operator should place the main face 2 opposite to the secondary face 3 of the first brick. After locating one brick on the other and due to the fact that the projections 5 stand out slightly, the same cause the mortar 9 to start displacing entering within the cavities 6, as shown in figure 2 . Afterwards, the pressure is continued until both bricks contact each other by its internal faces. Additionally, the lengthwise protrusions 8 maintain the alignment of the wall, preventing the bricks to laterally offset.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Finishing Walls (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Paper (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Building Environments (AREA)

Description

    Object of the invention
  • This invention refers to a brick coupling system of the type used in the construction of dwellings, which yields important savings in the building of the walls and permits at the same time to obtain better thermal coefficients.
    • Background of the invention
  • As is well known, for masonry works (usually designated as masonry) mainly stone materials are used, such as: clay bricks, cement mortar blocks, stone and other materials of the same or similar origin to those mentioned. The bricks are used in the building of closing walls, façades and partition walls. They are preferably used to build walls or separating walls. Although they may be assembled without any binding product, usually they are bound with a mortar mass. The arrangement of the bricks in the wall is called brick layout and a wide variety of forms of bricks layout are known in this field. In the construction industry, under the name mortar, it is to be understood a combination of binding materials and agglomerates formed by cement, fine aggregates and water. Generally, mortar is used in masonry works as binding material, coating for walls, etc.
  • The traditional binding between bricks for a non supporting wall is based on the application of mortar on all the surfaces of contact of the bricks. This mass of cement is much more heat conducting than the same bricks, thus generating a thermal bridge through said mass between the internal coating and the external coating of the wall which are at different temperatures. For this reason, the desired insulating effect is substantially reduced, with the subsequent detriment to energy conservation. All of this generates pathologies in the internal coating such as cracks, changes in the colour of the wall in the area of the joints, and even the spreading of fungus.
  • On the other side, the tendencies and potential rules for building in different weather areas will favour the saving and conservation of energy. However, until now known, no solutions have been found which permit to optimize the use of mortar as well as to maintain the heat insulation characteristics.
  • It is known from FR 1 293 147 A a system for assembling walls and other constructions by coupling different bricks one to other; said bricks being provided with protrusions matching receiving portions on complementary bricks. The system also discloses the use of cement only on limited locations.
  • US 3,791,090 discloses a building block having dovetail tongue and groove configuration for interlocking with adjacent blocks by sliding in a longitudinal direction. The dovetail tongue protrudes outwardly from one side of the block and has two widened longitudinal end portions have a cross-sectional shape defining an inverted triangular wedge which end portions are interconnected by an intermediate portion rectangular in cross section which intermediate portion extends one-third the length of the tongue. The opposite side surface of the block has a complementary shape inverse to that of the tongue forming a groove of constant depth.
    • Description of the invention
  • It is therefore an object of the invention to provide a system according to claim 1 for the binding of bricks of the type used for the building of dwellings in general, wherein the system comprises at least two bricks, wherein each brick has a main face and a secondary face opposite to the main face, the main face being the lower surface in installed state of said brick, wherein said main face has projections, which are perpendicular to the main face, wherein the secondary face includes to the projections corresponding cavities , said cavities being axially aligned with said perpendicular projections,said perpendicular projections having substantially rectangular geometry cross-section,the end portions of the perpendicular projections being provided with slight widenings,said main face being further provided with longitudinal protrusions for delimitation of the horizontal displacement between two adjacent bricks stacked upon each other,wherein the longitudinal protrusions coincide with the external edges of the corresponding cavities of the secondary face.
  • For better understanding of the object of the invention, various explanatory figures of drawings have been annexed showing one of the preferred forms of embodiment of the invention, in which:
    • Brief description of the drawings
    • Figure 1 is a front elevation view of the system which is the object of the invention showing the brick which is the subject of the same; and
    • Figure 2 is a front elevation view of the system of figure 1 as used in the construction field.
    Description of a preferred embodiment
  • According to the figures, the system for joining bricks has been shown with the general reference number 1. Said joining system 1 comprises at least one brick 2 that in this particular embodiment is a brick of the type called thermal brick. The thermal concrete brick is a prefabricated body with the form of a straight prism made out of light aggregates, for its use in the construction of walls. It is made out of light aggregates from volcanic origin which confer higher thermal characteristics than those of the red baked bricks and normal concrete blocks.
  • Due to the fact that the thermal bricks are manufactured using light aggregates, a final product is obtained that given its light weight, has excellent thermal characteristics as compared to the traditional systems for the construction of walls (blocks and baked bricks). Its main application consists in the construction of walls for dwellings, commercial buildings, etc. in which an objective is to obtain thermal efficiency.
  • However, all experts in the matter will understand that the reach of the invention is not determined by the type of brick to be used as this may be substituted by any type of brick permitting to apply the characteristics defined in the annexed claims.
  • As a consequence, the brick 2 has a main face 3 and a secondary face 4 opposite the main face. It is possible to define as well, according to the use to be given to the system of the invention, that the main and secondary faces may be the lower and upper faces respectively or viceversa, depending on the arrangement of the brick 1 at the moment of being applied to the construction. It is to be remarked as well that it is possible to define said faces as male face and female face, due to its embedding together at the moment of application of the system of the present invention.
  • The main face 3 has perpendicular projections 5 which define a means for the displacement of material. As an additional characteristic, each of the perpendicular projections 5 has a substantially rectangular geometrical shape having in its end portions small widenings 7. These widenings 7 define means for holding the displaced material. On the other side, in said main face or male face 3 some means for delimitation of the displacement will be provided, which means are defined by the lengthwise protrusions 8.
  • To the secondary face 4 comprises corresponding cavities 6 which define a means for the location of the displaced material.
  • For better understanding of the subject of the present invention, a description of the use of the brick binding system will be made in reference to the annexed figures of drawings. Thus, at the time of building a wall, as shown in figure 2, the operator will place the brick 1 with its main face directed downwards, so that the whole brick will be immersed within a bed of mortar 9. Said bed of mortar 9 should be sufficiently thick in order that when locating the brick 1 and exerting pressure in the downwards direction, the mortar shifts towards all of the cavities, obtaining in this way a correct binding. Afterwards, the operator will continue the application of mortar within cavities 6 in a flushing manner, taking care that the applied mortar covers all of said cavities 6.
  • However, when locating the second brick 1, the operator should place the main face 2 opposite to the secondary face 3 of the first brick. After locating one brick on the other and due to the fact that the projections 5 stand out slightly, the same cause the mortar 9 to start displacing entering within the cavities 6, as shown in figure 2. Afterwards, the pressure is continued until both bricks contact each other by its internal faces. Additionally, the lengthwise protrusions 8 maintain the alignment of the wall, preventing the bricks to laterally offset.
    permitting to apply the characteristics defined in the annexed claims.
  • As a consequence, the brick 2 has a main face 3 and a secondary face 4 opposite the main face. It is possible to define as well, according to the use to be given to the system of the invention, that the main and secondary faces may be the lower and upper faces respectively or viceversa, depending on the arrangement of the brick 1 at the moment of being applied to the construction. It is to be remarked as well that it is possible to define said faces as male face and female face, due to its embedding together at the moment of application of the system of the present invention.
  • The main face 3 has perpendicular projections 5 which define a means for the displacement of material. As an additional characteristic, each of the perpendicular projections 5 has a substantially rectangular geometrical shape having in its end portions small widenings 7. These widenings 7 define means for holding the displaced material. On the other side, in said main face or male face 3 some means for delimitation of the displacement will be provided, which means are defined by the lengthwise protrusions 8.
  • To the secondary face 4 comprises corresponding cavities 6 which define a means for the location of the displaced material.
  • For better understanding of the subject of the present invention, a description of the use of the brick binding system will be made in reference to the annexed figures of drawings. Thus, at the time of building a wall, as shown in figure 2, the operator will place the brick 1 with its main face directed downwards, so that the whole brick will be immersed within a bed of mortar 9. Said bed of mortar 9 should be sufficiently thick in order that when locating the brick 1 and exerting pressure in the downwards direction, the mortar shifts towards all of the cavities, obtaining in this way a correct binding. Afterwards, the operator will continue the application of mortar within cavities 6 in a flushing manner, taking care that the applied mortar covers all of said cavities 6.
  • However, when locating the second brick 1, the operator should place the main face 2 opposite to the secondary face 3 of the first brick. After locating one brick on the other and due to the fact that the projections 5 stand out slightly, the same cause the mortar 9 to start displacing entering within the cavities 6, as shown in figure 2. Afterwards, the pressure is continued until both bricks contact each other by its internal faces. Additionally, the lengthwise protrusions 8 maintain the alignment of the wall, preventing the bricks to laterally offset.

Claims (1)

  1. A brick coupling system for building of dwellings, said system comprising:
    at least two bricks (1), wherein each brick (1) has a main face (3) and a secondary face (4) opposite to the main face, the main face (3) being the lower surface in installed state of said brick (1), wherein said main face (3) has projections (5), which are perpendicular to the main face (3), wherein the secondary face (4) includes to the projections (5) corresponding cavities (6), said cavities (6) being axially aligned with said perpendicular projections (5), said perpendicular projections (5) having substantially rectangular geometry cross-section, the end portions of the perpendicular projections (5) being provided with slight widenings, said main face (3) being further provided with longitudinal protrusions (8) for delimitation of the horizontal displacement between two adjacent bricks (1) stacked upon each other, wherein the longitudinal protrusions (8) coincide with the external edges of the corresponding cavities (6) of the secondary face (4).
EP10840621.6A 2009-12-28 2010-12-21 Brick coupling system Active EP2520731B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL10840621T PL2520731T3 (en) 2009-12-28 2010-12-21 Brick coupling system
RS20191322A RS59486B1 (en) 2009-12-28 2010-12-21 Brick coupling system
HRP20191868TT HRP20191868T1 (en) 2009-12-28 2019-10-15 Brick coupling system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ARP090105139A AR074926A1 (en) 2009-12-28 2009-12-28 BRICK UNION
PCT/ES2010/070860 WO2011080369A1 (en) 2009-12-28 2010-12-21 Brick coupling system

Publications (3)

Publication Number Publication Date
EP2520731A1 EP2520731A1 (en) 2012-11-07
EP2520731A4 EP2520731A4 (en) 2013-07-10
EP2520731B1 true EP2520731B1 (en) 2019-07-17

Family

ID=44070405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10840621.6A Active EP2520731B1 (en) 2009-12-28 2010-12-21 Brick coupling system

Country Status (12)

Country Link
EP (1) EP2520731B1 (en)
AR (1) AR074926A1 (en)
BR (1) BR112012016092B1 (en)
CL (1) CL2012001769A1 (en)
DK (1) DK2520731T3 (en)
ES (1) ES2391344B1 (en)
HR (1) HRP20191868T1 (en)
HU (1) HUE046896T2 (en)
PL (1) PL2520731T3 (en)
RS (1) RS59486B1 (en)
UY (1) UY33088A (en)
WO (1) WO2011080369A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3003879B1 (en) * 2013-03-28 2015-04-03 Wienerberger BUILDING BLOCK WITH ALVEOLES OF DIFFERENT SECTIONS
WO2015113075A2 (en) * 2014-01-21 2015-07-30 Van Nam Nguyen Yin-yang brick
FR3033344B1 (en) * 2015-03-03 2018-06-22 Wienerberger CONSTRUCTION ELEMENT WITH HORIZONTAL PERFORATION
AR111923A1 (en) * 2018-05-10 2019-09-04 Martin Lozano Pablo Enrique SET OF CONSTRUCTION BLOCKS
TR2021021882A2 (en) * 2021-12-30 2022-01-21 Atatuerk Ueniversitesi Rektoerluegue Bilimsel Arastirma Projeleri Bap Koordinasyon Birimi A NEW FORM OF CONSTRUCTION ELEMENT TO BE USED IN WALL BUILDING

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191323011A (en) * 1912-11-29 1914-03-05 Arthur Hardoncourt Improvements in Wall Constructions and Tiles or Blocks therefor.
GB852813A (en) * 1956-12-31 1960-11-02 John Bernard Stuart Underwood Improvements in or relating to building bricks and to methods of laying the same
FR1271506A (en) * 1960-05-13 1961-09-15 New brick
FR1293147A (en) * 1961-03-31 1962-05-11 Construction rubble
US3791090A (en) * 1971-12-30 1974-02-12 A Kniefel Building block
AU549019B2 (en) * 1980-04-14 1986-01-09 Tileman & Co. Ltd. Interlocking brick
KR20080025107A (en) * 2008-02-28 2008-03-19 박철훈 Improved brick and constructing method of the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
AR074926A1 (en) 2011-02-23
EP2520731A4 (en) 2013-07-10
PL2520731T3 (en) 2020-03-31
HUE046896T2 (en) 2020-04-28
EP2520731A1 (en) 2012-11-07
WO2011080369A1 (en) 2011-07-07
UY33088A (en) 2011-05-31
WO2011080369A4 (en) 2011-09-01
ES2391344B1 (en) 2013-09-25
BR112012016092B1 (en) 2019-08-20
CL2012001769A1 (en) 2013-01-18
HRP20191868T1 (en) 2020-02-07
BR112012016092A2 (en) 2016-08-16
RS59486B1 (en) 2019-12-31
ES2391344A1 (en) 2012-11-23
DK2520731T3 (en) 2019-10-28

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