WO1986005256A1 - A device for use with an illuminated surface, preferably an electric sign - Google Patents

A device for use with an illuminated surface, preferably an electric sign Download PDF

Info

Publication number
WO1986005256A1
WO1986005256A1 PCT/SE1986/000098 SE8600098W WO8605256A1 WO 1986005256 A1 WO1986005256 A1 WO 1986005256A1 SE 8600098 W SE8600098 W SE 8600098W WO 8605256 A1 WO8605256 A1 WO 8605256A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
emission
lense
plate
mounting element
Prior art date
Application number
PCT/SE1986/000098
Other languages
French (fr)
Inventor
Torsten Lundin
Original Assignee
Ledex Gmbh
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 Ledex Gmbh filed Critical Ledex Gmbh
Publication of WO1986005256A1 publication Critical patent/WO1986005256A1/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources
    • F21V19/002—Fastening arrangements intended to retain light sources the fastening means engaging the encapsulation or the packaging of the semiconductor device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

Definitions

  • a device for use with an illuminated surface preferably an electric sign.
  • the present invention relates to a device for use with an illuminated surface, preferably an electric sign.
  • light-emission diodes instead of fluorescent tubes as light sources in connection with the type of illuminated surfaces which constitute electric signs for advertising and other purposes.
  • the use of light-emission diodes for this purpose offers many and substantial advantages.
  • the light-emission diodes provide for a substantially improved reliability and substantially reduced energy consumption.
  • the light-emission diode has a life of a couple of hundred thousands of hours which is several times more than the life of fluorescent tubes.
  • the strength of the light-emission diode is quite superior to the strength of conventional light sources.
  • a further advantage is that the light-emission diodes offer substantially larger possibilities of designing an electric sign in the desired way. In this respect the use of fluorescent tubes provide substantial restrictions.
  • each l ight-emission diode in a separate reflector element comprisi ng a semi -spherical depression and to mount the units consisti ng of l ight-emission diodes and reflector elements in an opening in a surface formed by a plate or a wal l in a desi red pattern to provide the intended electric sign. It is a drawback of the lastmentioned type of device that the units consisting of reflector elements and light-emission diodes constitute complicated and expensive devices .
  • a common drawback of the previously known devices both comprising reflectors in the form of semi -spherical depressions is that there is col lected dirt, snow and ice in said depressions preventing the desired scattering of the l ight of the l ight-emission diodes .
  • the object of the invention is to provide an improved device -for use with an illuminated surface, preferably an electric sign.
  • each light-emission diode is enclosed in a light scattering lense which is connected with a mounting element by means of which the unit comprising the light- emission diode and the lense is connected with said surface.
  • the device according to the invention does not require any reflector for scattering the light of the light-emission diodes, the above drawbacks of reflectors described above being thereby obviated.
  • the units comprising light-emission diodes and light scattering lenses can be connected with the desired surface by means of their mounting elements in an extremely simple, rapid and reliable way.
  • the lense and the mounting element constitute one unit and the mounting element is adapted to be introduced in and fastened in an opening in the surface to be illuminated.
  • the surface is constituted by one side of a board or plate and that the opening extends through said board or plate.
  • the mounting element is formed so as extend through and project from the board or plate at the side thereof opposite from the illuminated side of the board or piate_ the mounting element being thereby retained in a simple way by means of a locking element engaging the side of the board or plate opposite from the illuminated side thereof.
  • the invention it is possible to provide electric signs without any special machinery or special knowledge by obtaining the desired number of the units comprising light-emission diodes, lenses and mounting elements and mounting the units in openings formed in a sign plate.
  • the openings of the sign plate can of course be provided by means of conventional drilling equipment.
  • the light-emission diodes are protected by the lenses enclosing the light-emission d ' iodes for which reason the device according to the invention have an extraordinary strength.
  • the lenses treat the light of the light-emission diodes in a more efficient way than the reflectors used according to the previously known technique which together with the fact that the lenses less easily get dirty than the previously known reflectors provide that the light yield of a device according to the invention is substantial ⁇ ly higher than the light yield of the previously known devices.
  • Fig. 1 shows a device according to the invention in the form of an e.ectric sign shown in plan view.
  • Fig. 2 - is a section on line 11—11 of Fig. 1 on an enlarged scale.
  • Fig. 3 is a detail of an element of the device according to the invention.
  • Fig. 1 there is shown an electric sign comprising a plate 2 having an illuminated surface 4 within the areas of the letters T and L.
  • the illumination of the surface 4 is provided by means of several luminous units 6 positioned within the area of said letters.
  • each luminous unit 6 consists of a light-emission diode 8, a lens 10 enclosing the light-emission diode and a mounting element 12 formed in one unit with the lense 10.
  • the mounting element 12 of each luminous unit 6 extends through a through opening 14 provided in the plate 2.
  • the mounting element 12 has such a length that it extends through its corresponding opening 14 and projects at the side 16 of the plate 2 opposite from the surface 4 thereof.
  • the mounting elements 12 are provided with circumferencial grooves for receiving a locking element 18 preferably consisting of a locking ring.
  • the light-emission diodes 8 are positioned in recesses 20 provided in the units consisting of the lenses 10 and the mounting element 12.
  • the recesses 20 are sealed by means of a suitable sealing mass 22.
  • the terminals 24 of the light-emission diodes 8 project through the sealing mass 22 and are according to conventional, desired principles connected with a suitable power source.
  • each luminous unit 6 provides a scattering of the light from the light emission diode of the unit so that each luminous unit 6 forms a luminous point having a diameter corresponding the outer diameter of the lense 10. At a distance the luminous units 6 are regarded as a continuous luminous surface.
  • the light-emitting chips 26 of the light- emission diodes 8 are preferably positioned in the plane of the surface 4 of the plate 2.
  • the device according to the invention offers great advantages with regard to the manufacturing, mounting and utilization.
  • the luminous units 6 are manufactured in a simple way by manufacturing the lenses 10 and the mounting elements 12 as shown in Fig. 3 from a plastic material and by positioning and fixing the light-emission diodes 10 in the recesses 20.
  • the mounting of the luminous units 6 on a plate for forming for example an electric sign is conducted in a simple way by formi g in the plate 2 openings having a suitable diameter with regard to the outer diameter of the mounting element 12 by means of conventional drilling equipment and by connecting the luminous units 6 to the plate by introducing the mounting elements 12 in the opening and securing the mounting elements therein by means of the locking elements 18.
  • the device according to the invention is advantageous with regard to the fact that the light-emission diodes 8 have a completely protected position within the lenses 10 and by the fact that the lenses 10 are less subjected to the collection " of dirt than the reflectors of the previously known devices.

Abstract

A device for use with an illuminated surface, preferably an electric sign, comprises several light-emission diodes (8) positioned adjacent and connected with said surface (4). In order to provide a scattering of the light of the light-emission diodes (8) each light-emission diode is enclosed in a light-scattering lense (10) to which there is connected a mounting element (12) by means of which the unit consisting of the light-emission diode and the lense is connected with said surface.

Description

A device for use with an illuminated surface, preferably an electric sign.
The present invention relates to a device for use with an illuminated surface, preferably an electric sign. Recently it has become common to use light-emission diodes instead of fluorescent tubes as light sources in connection with the type of illuminated surfaces which constitute electric signs for advertising and other purposes. The use of light-emission diodes for this purpose offers many and substantial advantages. Thus, the light-emission diodes provide for a substantially improved reliability and substantially reduced energy consumption. The light-emission diode has a life of a couple of hundred thousands of hours which is several times more than the life of fluorescent tubes. In addition thereto the strength of the light-emission diode is quite superior to the strength of conventional light sources. A further advantage is that the light-emission diodes offer substantially larger possibilities of designing an electric sign in the desired way. In this respect the use of fluorescent tubes provide substantial restrictions.
The use of light-emission diodes as light sources in connection with electric signs requires a scattering of the light emitted by the light- emission diode. In order to provide this scattering of the light it is previously known to position each light emission diode in an opening at the center of a substantially semi-spherical depression provided in the sign, the surfaces of the semi-spherical depressions constituting reflectors scattering the light emitted by the light- emission diodes positioned therein. For providing a normal electric sign there is required a large number of light-emission diodes and a corresponding number of light-reflecting depressions. Thus, it is a time consuming and laborious operation to provide the light- reflecting depressions making the operation expensive and requiring the use. of compl icated and special machi nery in order to provide a satisfactory resul t.
In order to obviate the drawbacks described above it is previously known to provide each l ight-emission diode in a separate reflector element comprisi ng a semi -spherical depression and to mount the units consisti ng of l ight-emission diodes and reflector elements in an opening in a surface formed by a plate or a wal l in a desi red pattern to provide the intended electric sign. It is a drawback of the lastmentioned type of device that the units consisting of reflector elements and light-emission diodes constitute complicated and expensive devices .
A common drawback of the previously known devices both comprising reflectors in the form of semi -spherical depressions is that there is col lected dirt, snow and ice in said depressions preventing the desired scattering of the l ight of the l ight-emission diodes .
The object of the invention is to provide an improved device -for use with an illuminated surface, preferably an electric sign.
In order to comply with this object the device according to the invention is characterized in that each light-emission diode is enclosed in a light scattering lense which is connected with a mounting element by means of which the unit comprising the light- emission diode and the lense is connected with said surface.
Thus, the device according to the invention does not require any reflector for scattering the light of the light-emission diodes, the above drawbacks of reflectors described above being thereby obviated. The units comprising light-emission diodes and light scattering lenses can be connected with the desired surface by means of their mounting elements in an extremely simple, rapid and reliable way.
Preferably the lense and the mounting element constitute one unit and the mounting element is adapted to be introduced in and fastened in an opening in the surface to be illuminated. It is thereby preferred that the surface is constituted by one side of a board or plate and that the opening extends through said board or plate. There¬ by, the mounting element is formed so as extend through and project from the board or plate at the side thereof opposite from the illuminated side of the board or piate_ the mounting element being thereby retained in a simple way by means of a locking element engaging the side of the board or plate opposite from the illuminated side thereof.
Due to the invention it is possible to provide electric signs without any special machinery or special knowledge by obtaining the desired number of the units comprising light-emission diodes, lenses and mounting elements and mounting the units in openings formed in a sign plate. The openings of the sign plate can of course be provided by means of conventional drilling equipment.
In a device according to the invention the light-emission diodes are protected by the lenses enclosing the light-emission d'iodes for which reason the device according to the invention have an extraordinary strength.
The lenses treat the light of the light-emission diodes in a more efficient way than the reflectors used according to the previously known technique which together with the fact that the lenses less easily get dirty than the previously known reflectors provide that the light yield of a device according to the invention is substantial¬ ly higher than the light yield of the previously known devices.'
By colouring the lenses it is in the device according to the invention possible to provide light having substantially higher colour intensity than in the previously known devices.
The invention is described in the following with reference to the accompanying drawing.
Fig. 1 shows a device according to the invention in the form of an e.ectric sign shown in plan view. Fig. 2 -is a section on line 11—11 of Fig. 1 on an enlarged scale.
Fig. 3 is a detail of an element of the device according to the invention.
In Fig. 1 there is shown an electric sign comprising a plate 2 having an illuminated surface 4 within the areas of the letters T and L. The illumination of the surface 4 is provided by means of several luminous units 6 positioned within the area of said letters. As is most clearly shown in Fig. 2 each luminous unit 6 consists of a light-emission diode 8, a lens 10 enclosing the light-emission diode and a mounting element 12 formed in one unit with the lense 10.
The mounting element 12 of each luminous unit 6 extends through a through opening 14 provided in the plate 2. The mounting element 12 has such a length that it extends through its corresponding opening 14 and projects at the side 16 of the plate 2 opposite from the surface 4 thereof. Within the plane of the side 16 the mounting elements 12 are provided with circumferencial grooves for receiving a locking element 18 preferably consisting of a locking ring. By the engagement of the surface of the lense 10 opposite to the surface 4 and the engagement of the locking element 18 with opposite sides of the plate adjacent the corresponding opening 14 there is provided an efficient retaining of the luminous units 6 to the plate 2. Because of the fact that the locking element 18 is of a releasable type it is possible to replace the luminous units 6 if that should be necessary.
The light-emission diodes 8 are positioned in recesses 20 provided in the units consisting of the lenses 10 and the mounting element 12. The recesses 20 are sealed by means of a suitable sealing mass 22. The terminals 24 of the light-emission diodes 8 project through the sealing mass 22 and are according to conventional, desired principles connected with a suitable power source.
The lense 10 of each luminous unit 6 provides a scattering of the light from the light emission diode of the unit so that each luminous unit 6 forms a luminous point having a diameter corresponding the outer diameter of the lense 10. At a distance the luminous units 6 are regarded as a continuous luminous surface. In order to provide an optimal light scattering the light-emitting chips 26 of the light- emission diodes 8 are preferably positioned in the plane of the surface 4 of the plate 2.
It is realized that the device according to the invention offers great advantages with regard to the manufacturing, mounting and utilization.
The luminous units 6 are manufactured in a simple way by manufacturing the lenses 10 and the mounting elements 12 as shown in Fig. 3 from a plastic material and by positioning and fixing the light-emission diodes 10 in the recesses 20.
The mounting of the luminous units 6 on a plate for forming for example an electric sign is conducted in a simple way by formi g in the plate 2 openings having a suitable diameter with regard to the outer diameter of the mounting element 12 by means of conventional drilling equipment and by connecting the luminous units 6 to the plate by introducing the mounting elements 12 in the opening and securing the mounting elements therein by means of the locking elements 18.
With regard to its use the device according to the invention is advantageous with regard to the fact that the light-emission diodes 8 have a completely protected position within the lenses 10 and by the fact that the lenses 10 are less subjected to the collection" of dirt than the reflectors of the previously known devices.
The invention can be modified within the scope of the following claims.

Claims

C L A I M S
1. A device for use with an illuminated surface, preferably an electric sign, comprising light-emission diodes positioned in connection with said surface, c h a r a c t e r i z e d in that each light-emission diode (8) is enclosed in a light scattering lense (10) and that a mounting element (12) is connected with the lense, the unit formed by the light-emission diode and the lense being connected with said surface (4) by means of said mounting element (12).
2. A device as claimed in claim 1, c h a r a c t e r i z e d in that the lense (10) and the mounting element (12) are formed in one piece.
2. A device as claimed in claim 1 or 2, c h a r a c t e r i z e d in that the mounting element (12) projects into an opening (14) in the surface (4) and is fixed in said opening.
•a
4. A device as claimed in claim 3, wherein the illuminated surface (4) constitutes one side of a board or plate (2) and the opening (14) extends through said board or plate, c h a r a c t e r i z e d in that the mounting element (12) extends through and projects from the board or plate (2) at the side (16) thereof opposite from the illuminated surface and is secured in its mounted position by means of a preferably releasable locking element (18) engaging said side (16).
5. A device as claimed in any of the preceding claims, c h a a c t e r i z e d in that the light-emitting chips (26) of the light-emission diodes (8) are positioned in the plane of the illuminated surface (4).
PCT/SE1986/000098 1985-03-07 1986-03-07 A device for use with an illuminated surface, preferably an electric sign WO1986005256A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8501110A SE8501110L (en) 1985-03-07 1985-03-07 DEVICE ON A LIGHTED SURFACE, PREFERRED A LIGHT SIGN
SE8501110-4 1985-03-07

Publications (1)

Publication Number Publication Date
WO1986005256A1 true WO1986005256A1 (en) 1986-09-12

Family

ID=20359395

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1986/000098 WO1986005256A1 (en) 1985-03-07 1986-03-07 A device for use with an illuminated surface, preferably an electric sign

Country Status (3)

Country Link
EP (1) EP0221912A1 (en)
SE (1) SE8501110L (en)
WO (1) WO1986005256A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643640A1 (en) * 1989-02-24 1990-08-31 Telemecanique Electrique Proximity detector with state indication
GB2324363A (en) * 1997-04-16 1998-10-21 Siemens Plc LED mounting module for use in variable message displays
AU723764B3 (en) * 2000-05-12 2000-09-07 Hawko Australia Pty Ltd Light source
WO2001048421A1 (en) * 1999-12-23 2001-07-05 Manfred Kluth Light fitting
NL1020114C2 (en) * 2002-03-05 2003-09-08 Kamp Holding B V Diode light for e.g. lighting roads or swimming pools, comprises solid head and tube containing LED
EP1803993A1 (en) * 2005-12-29 2007-07-04 Ambiance Lumière Lighting device for signalling panels

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737647A (en) * 1971-04-16 1973-06-05 Chiyoda Kk Electronic luminous device
DK147399B (en) * 1978-04-24 1984-07-16 Cipel LIGHT SIGNAL EVENTS
DK147502B (en) * 1978-04-24 1984-09-03 Cipel LIGHT SIGNAL ARRANGEMENTS FOR THE RENDERING OF A CONEFUL LIGHT BUNDLE
SE438390B (en) * 1983-08-30 1985-04-15 Marillo Ab Mounting device for light diodes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737647A (en) * 1971-04-16 1973-06-05 Chiyoda Kk Electronic luminous device
DK147399B (en) * 1978-04-24 1984-07-16 Cipel LIGHT SIGNAL EVENTS
DK147502B (en) * 1978-04-24 1984-09-03 Cipel LIGHT SIGNAL ARRANGEMENTS FOR THE RENDERING OF A CONEFUL LIGHT BUNDLE
SE438390B (en) * 1983-08-30 1985-04-15 Marillo Ab Mounting device for light diodes

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643640A1 (en) * 1989-02-24 1990-08-31 Telemecanique Electrique Proximity detector with state indication
GB2324363A (en) * 1997-04-16 1998-10-21 Siemens Plc LED mounting module for use in variable message displays
GB2324363B (en) * 1997-04-16 2001-05-16 Siemens Plc Improvements in or relating to variable message displays
WO2001048421A1 (en) * 1999-12-23 2001-07-05 Manfred Kluth Light fitting
EP1630473A3 (en) * 1999-12-23 2008-01-23 Manfred Kluth Lighting device, in particular for use as a ceiling and/or wall element
AU723764B3 (en) * 2000-05-12 2000-09-07 Hawko Australia Pty Ltd Light source
NL1020114C2 (en) * 2002-03-05 2003-09-08 Kamp Holding B V Diode light for e.g. lighting roads or swimming pools, comprises solid head and tube containing LED
EP1803993A1 (en) * 2005-12-29 2007-07-04 Ambiance Lumière Lighting device for signalling panels
FR2895785A1 (en) * 2005-12-29 2007-07-06 Ambiance Lumiere Sa LUMINOUS DEVICE FOR SIGNALING PANELS

Also Published As

Publication number Publication date
EP0221912A1 (en) 1987-05-20
SE8501110D0 (en) 1985-03-07
SE8501110L (en) 1986-09-08

Similar Documents

Publication Publication Date Title
US7204610B2 (en) LED indicator lamp
US6731222B2 (en) Sun phantom LED traffic signal
CA2073751C (en) Led lamp including refractive lens element
US5400228A (en) Full color illuminating unit
US6667582B1 (en) Light emitting diode reflector
CA2380538A1 (en) Led traffic light with individual led reflectors
US6485160B1 (en) Led flashlight with lens
US6502956B1 (en) Light emitting diode lamp with individual LED lenses
CN1193437C (en) LED module for signaling devices
GB2350176A (en) A beacon producing light with a wide horizontal angular spread
US20040004836A1 (en) Side projecting LED signal
JP2000511334A (en) Lighting device for signals, identification or signs on airport traffic surfaces
WO1986005256A1 (en) A device for use with an illuminated surface, preferably an electric sign
KR100890933B1 (en) Led lamp
SE9704927L (en) Lighting device with LEDs
GB2297149A (en) Lighting apparatus
US10818828B2 (en) Method and apparatus for a low profile light fixture
WO1995023313A1 (en) Warning light
GB2164437A (en) Flat light sources
KR200295125Y1 (en) Signal light with light emitting diode
KR20060024303A (en) Lighting equipment composed with light divided cover panel
CA2312285C (en) Disc-shaped light-emitting diode illumination device
KR200299602Y1 (en) Transparent fresnel lens for traffic signal
KR100395674B1 (en) The traffic led lights arrayed lighting emitting diodes for hexagon
JP2004218290A (en) Light emitting diode condenser and embedded type beacon

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1986902062

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1986902062

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1986902062

Country of ref document: EP